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Mineral Specimens - page 17
The Jan Buma Collections

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Carles Curto Text: Carles Curto (curator of the Geology Museum, Barcelona ) & Jordi Fabre
Assistance from John S. White (former Smithsonian curator) John S. White

 


Jan Buma, apart from being a great person, is a Dutch mineral collector who is very well known at most of the European shows since for many years he has attended them with great dedication. At these shows he bought a large number of specimens, initially all types of worldwide minerals, and then only in the three key areas of his collection: Fluorite, Rumania, Indian Zeolites and related species.

I have kept up a long friendship with Jan, which started many years ago at a Munich show. Back then I sold him one of the first specimens from the Emilio Mine, which caught his attention as it was a new locality at that time. Since then we have always kept in touch and done regular deals. So, when he sold his worldwide collection of minerals I had the opportunity and good luck of buying it. Some time later Jan decided to concentrate on an even more select range of minerals: just one, in fact - Fluorite. So he then sold his collection of Indian Zeolites and Rumanian specimens. Once again I was lucky enough to have the chance of buying his collection of Indian minerals.

For each specimen Jan added a sheet with lots of information on it that we can send to the buyer. The specimens are very appealing and well priced, which is really pleasing since Jan had a good eye when buying minerals and was buying a lot of material at a time when the prices were far less expensive than they are today.

THE FLUORITE COLLECTION

In 2004 Jan Buma decided to concentrate on only high quality Fluorite specimens, so he decided to sell off most of his Fluorites, keeping just a select few. Jan decided to separate the Fluorites he had for sale into two groups: ones that were easier to sell, as the specimens were relatively cheap and they were of interest because of the localities they came from; the second were the better specimens, in which the range of locations and the good quality were both noteworthy. At the end of 2010, Jan Buma, after having built yet another excellent collection of Fluorite, decided to sell his entire collection, including his best pieces.

Both the quality of the specimens, and the range of localities makes this a really interesting collection. Each specimen is very well documented, as it comes with a record on which Jan noted details of the mineral, the locality, when he bought it, who he bought if from, and how much he paid. We believe that the material from this collection should be of interest to both Fluorite collectors and to those who collect a wide range of high quality minerals, especially considering the excellent quality and reasonable prices of Jan's collection.

Given the large number of specimens in the Buma collections I could not manage them all at the same time, so I put them into stock with the aim of selling them slowly through the Internet and shows that we attend.

We hope that you enjoy these specimens from the Jan Buma Collection as much as we have enjoyed them.

Jordi Fabre

THE JAN BUMA FLUORITE COLLECTION


USA

Fluorite with Wulfenite
Fluorite with Wulfenite. Fluorite with Wulfenite.

FV16S5: Compact aggregate of clear green crystals of Fluorite. They are octahedral, with polycrystalline growths on their faces, and with a second generation of deep violet small cubic crystals partially coated by yellow laminar crystals of Wulfenite, a very unusual association.
Toughnut Mine, Tombstone, Cochise County, Arizona  USA

Specimen size: 7.5 × 5.4 × 3.7 cm = 3.0” × 2.1” × 1.5”

Main crystal size: 0.1 × 0.1 cm = 0.0” × 0.0”

Fluorescent long & short UV

Former Jan Buma collection. Number 960909

Order
Fluorite with Calcite

MX14T1: Group of cubic crystals of Fluorite, with dissolution forms, and a very deep, intense and uniform violet color. It is on matrix with scalenohedral crystals of Calcite that are extraordinarily acute, elongated and most of them doubly terminated.
Minerva I Mine, Cave-in-Rock, Hardin County, Illinois  USA

Specimen size: 7.2 × 4.2 × 2.2 cm = 2.8” × 1.7” × 0.9”

Calcite minor fluorescence long & short UV

Former Jan Buma collection. Number 060402

Fluorite with Calcite. Front
Front
Fluorite with Calcite. Rear
Rear
Fluorite with Calcite.
Sold
Fluorite with Sphalerite and Barite
Fluorite with Sphalerite and Barite. Front
Front
Fluorite with Sphalerite and Barite. Side
Side
Fluorite with Sphalerite and Barite. Fluorite with Sphalerite and Barite.

MA87R9: Cubic crystals of Fluorite with excellent transparency, a very deep color, and white color zones centered in the crystals. They are on matrix, with Barite and small crystals of Sphalerite. An American classic.
Elmwood Mine, Carthage, Smith County, Tennessee  USA

Specimen size: 11 × 8.1 × 5.3 cm = 4.3” × 3.2” × 2.1”

Main crystal size: 1.1 × 1 cm = 0.4” × 0.4”

Former Jan Buma collection. Number 030915

Sold

Mexico - Canada

Fluorite with Creedite

MC26R9: Radial aggregate of very acute long prismatic crystals of Creedite in which been formed two deformed octahedral crystals of slight green Fluorite. A mineralogical rarity.
Mina Navidad, Abasolo, Rodeo, Durango  Mexico (2004)

Specimen size: 5.2 × 4.1 × 4.4 cm = 2.0” × 1.6” × 1.7”

Main crystal size: 0.7 × 0.4 cm = 0.3” × 0.2”

Former Jan Buma collection. Number 040308

Fluorite with Creedite. Fluorite with Creedite.
Sold
Fluorite with Celestine
Fluorite with Celestine. Fluorite with Celestine.

FG46S5: Very sharp cubic crystals of Fluorite with very well defined faces and edges, of clear lilac color, whose base is a parallel growth of white tabular crystals of Celestine.
Tule Mine, Melchor Mϊzquiz, Coahuila  Mexico

Specimen size: 15 × 8.1 × 2.2 cm = 5.9” × 3.2” × 0.9”

Main crystal size: 1.6 × 1.1 cm = 0.6” × 0.4”

Former Jan Buma collection. Number 970906

Sold
Fluorite

MB47R9: An excellent representative of a very uncommon locality. It is a group of transparent and very bright crystals with honey yellow color zones concentrated in the central areas of each crystal and perfectly clear edges.
Flamboro Quarry, West Flamborough, Hamilton, Wentworth County, Ontario  Canada

Specimen size: 4.1 × 3.2 × 2.3 cm = 1.6” × 1.3” × 0.9”

Main crystal size: 1.8 × 1.8 cm = 0.7” × 0.7”

Former Jan Buma collection. Number 061017

Fluorite. Front
Front
Fluorite. Side
Side
Sold

Spain

Fluorite with Dolomite and Pyrite
Fluorite with Dolomite and Pyrite. Fluorite with Dolomite and Pyrite.

MG16W8: Druse of cubic crystals of fluorite with an intense yellow color, partially coated by Dolomite, that have the so- called “saddle” shape, and small crystals of Pyrite. We’ll send the Jan Buma collection card to the buyer of the sample.
Mina Moscona, Solνs, Corvera, Asturias  Spain (±1999)

Specimen size: 13.8 × 12.3 × 3 cm = 5.4” × 4.8” × 1.2”

Main crystal size: 1.1 × 1 cm = 0.4” × 0.4”

Fluorescent long & short UV

Former Jan Buma collection. Number 990602

Sold
Fluorite with Calcite and Pyrite

FJ14M0: Group of Fluorite crystals with blue to violet colors and geometric color zoning. There are some Pyrite inclusions, and on a matrix with Calcite.
Mina Jaimina, Caravia, Asturias  Spain (±1999)

Specimen size: 5.9 × 4.8 × 3.9 cm = 2.3” × 1.9” × 1.5”

Main crystal size: 1.6 × 1.5 cm = 0.6” × 0.6”

Minor fluorescence long & short UV

Former Jan Buma collection. Number 990304

Fluorite with Calcite and Pyrite.
Sold
Fluorite
Fluorite.

FV59M2: Small group of cubic Fluorite crystals with an rich yellow color, very deep, excellent luster and notable transparency for this locality. A perfect miniature from an uncommon locality.
Minas Gloria, Hornachuelos, Cσrdoba  Spain (±2001)

Specimen size: 3.8 × 2.5 × 1.8 cm = 1.5” × 1.0” × 0.7”

Main crystal size: 1 × 0.7 cm = 0.4” × 0.3”

Fluorescent short UV

Former Jan Buma collection. Number 010414

Sold

Rumania

Fluorite with Calcite

MD46R9: The sample is rare for the locality due to the scarcity of crystallized Fluorite there. On the piece the Fluorite forms very well defined cubic crystals, one of them clearly dominant, with color zoning and on a matrix of white Barite crystals.
Boldut Mine, Cavnic, Maramures  Rumania

Specimen size: 3.7 × 2.2 × 1.9 cm = 1.5” × 0.9” × 0.7”

Main crystal size: 1 × 0.9 cm = 0.4” × 0.4”

Former Jan Buma collection. Number 960917

Fluorite with Calcite.
Order
Calcite with Fluorite, Chalcopyrite and Quartz
Calcite with Fluorite, Chalcopyrite and Quartz. Front
Front
Calcite with Fluorite, Chalcopyrite and Quartz. Rear
Rear
Calcite with Fluorite, Chalcopyrite and Quartz.

MV27T1: Very aerial group of scalenohedral crystals of Calcite that are translucent, bright and slightly pinkish. On matrix, with a small group of clear green Fluorite crystals, Quartz and twinned crystals of Chalcopyrite.
Cavnic, Maramures  Rumania (±1999)

Specimen size: 7.4 × 7 × 3.7 cm = 2.9” × 2.8” × 1.5”

Calcite very fluorescent long & short UV / Fluorite fluorescent long & short UV

Former Jan Buma collection. Number 991036

Sold

Western Europe

Octahedral Fluorite with smoky Quartz

FH66T3: Group of octahedral crystals of Fluorite, with very well defined faces and edges and clear lilac color, very unusual for the samples from the area. They are on matrix, with smoky Quartz and Albite.
Fellital, Aar Massif, Uri  Switzerland

Specimen size: 9 × 8.6 × 3.9 cm = 3.5” × 3.4” × 1.5”

Main crystal size: 1.3 × 1.3 cm = 0.5” × 0.5”

Minor fluorescence long & short UV

Former Jan Buma collection. Number 030903

Octahedral Fluorite with smoky Quartz. Octahedral Fluorite with smoky Quartz.
Order
Fluorite with Quartz and Orthoclase
Fluorite with Quartz and Orthoclase. Front
Front
Fluorite with Quartz and Orthoclase. Side
Side

MH6T3: Aggregate of octahedral crystals with very well defined faces and edges, very transparent, with clear green color and on matrix of Quartz and Orthoclase.
The sample, a classic, is from Jan Buma’s collection, whose card, and a previous label from Gianguido Giannobi’s collection, we’ll send to the buyer.
Baveno, Verbano-Cusio-Ossola, Piemonte  Italy

Specimen size: 5.1 × 4 × 2.6 cm = 2.0” × 1.6” × 1.0”

Main crystal size: 0.9 × 0.8 cm = 0.4” × 0.3”

Fluorescence short UV & low fluorescence long UV

Former Jan Buma collection. Number 060605

Sold
Fluorite with Barite, Chalcopyrite and Calcite

To see a larger 3D image please
click here or on the image

FM88T3: Aggregate of very sharp cubic crystals of Fluorite. Of lilac color, they are partially coated by small crystals of Chalcopyrite and they are with white, very acute, scalenohedral crystals of Calcite and laminar Barite. The sample is very typical of this classic German mining area.
Wφlsendorf, Schwandorf, Oberpfalz, Bavaria  Germany

Specimen size: 21 × 14 × 5.5 cm = 8.3” × 5.5” × 2.2”

Main crystal size: 1.5 × 1.1 cm = 0.6” × 0.4”

Fluorescent long & short UV

Former Jan Buma collection. Number 990308

Fluorite with Barite, Chalcopyrite and Calcite. Fluorite with Barite, Chalcopyrite and Calcite.
Order
Fluorite with Quartz
Fluorite with Quartz. Fluorite with Quartz.

FJ11T3: Globular growths, on matrix, of yellow crystals with slightly defined faces and edges. More bright and colorful than usual for the samples from this locality.
Buxieres les Mines, Allier, Auvergne  France (±1989)

Specimen size: 8.6 × 5.6 × 2.4 cm = 3.4” × 2.2” × 0.9”

Main crystal size: 1 × 1 cm = 0.4” × 0.4”

Fluorescent long & short UV

Former Jan Buma collection. Number 890902

Sold
Fluorite with Galena

MZ13W8: Twinned cubic crystals of Fluorite that are transparent, very bright and with a clear green color. They are on a Quartz matrix with a small crystal of Galena at the base. We’ll send the Jan Buma collection card to the buyer of the sample.
Heights Quarry, Westgate, Weardale, Durham County, England  United Kingdom

Specimen size: 8.7 × 5.3 × 3.3 cm = 3.4” × 2.1” × 1.3”

Main crystal size: 1.5 × 1.5 cm = 0.6” × 0.6”

Former Jan Buma collection. Number 061009

Fluorite with Galena. Front
Front
Fluorite with Galena. Top
Top
Sold
Fluorite with Quartz and Galena
Fluorite with Quartz and Galena.

MK14W8: Transparent cubic crystals of Fluorite that have an intense green color, are partially coated by Quartz, and are on matrix, with small crystals of Galena. We’ll send the Jan Buma collection card to the buyer of the sample.
Heights Quarry, Westgate, Weardale, Durham County, England  United Kingdom

Specimen size: 7.8 × 6.5 × 3.6 cm = 3.1” × 2.6” × 1.4”

Main crystal size: 1.9 × 1.7 cm = 0.7” × 0.7”

Fluorescent long & short UV

Former Jan Buma collection. Number 090901

Sold
Fluorite with Siderite and Sphalerite

MD86W8: Aggregate of transparent cubic crystals of Fluorite that are very bright, have a very clear lilac color and are mostly coated by Siderite with complex crystals of Sphalerite. We’ll send the Jan Buma collection caed to the buyer of the sample.
Blackdene Mine, Weardale, Durham, England  United Kingdom (±1976)

Specimen size: 9.7 × 6.5 × 8.5 cm = 3.8” × 2.6” × 3.3”

Main crystal size: 1.4 × 1 cm = 0.6” × 0.4”

Very fluorescent long & short UV

Former Jan Buma collection. Number 061004

Fluorite with Siderite and Sphalerite. Front
Front
Fluorite with Siderite and Sphalerite. Side
Side
Order
Fluorite with Quartz
Fluorite with Quartz. Fluorite with Quartz.

MY26S1: Group of very transparent and bright cubic crystals. They are clear lilac and are partially coated by small, very bright, doubly terminated crystals of Quartz.
Blackdene Mine, Weardale, Durham, England  United Kingdom (±1982)

Specimen size: 16.6 × 11.2 × 4 cm = 6.5” × 4.4” × 1.6”

Main crystal size: 1.9 × 1.6 cm = 0.7” × 0.6”

Fluorescent long & short UV

Former Jan Buma collection. Number 061003

Sold
Fluorite with Calcite

FX63M0: Exceptional locality for the Fluorite specimens, that one must add to the specimen quality. Druse of cubic Fluorite crystals with two well marked color zones, first one is pale lilac and the other is totally colorless. Back side of the specimen is covered by small Calcite crystals.
Lavrion Mines, Lavrion, Attika  Greece

Specimen size: 7 × 5.5 × 2.4 cm = 2.8” × 2.2” × 0.9”

Main crystal size: 0.6 × 0.5 cm = 0.2” × 0.2”

Minor fluorescence long & short UV

Former Jan Buma collection. Number 990306

Fluorite with Calcite. Fluorite with Calcite.
Sold

FSU

Octahedral Fluorite with Pectolite
Octahedral Fluorite with Pectolite.

FC6H5: Green octahedral crystals of well defined faces and edges on a matrix of Sphalerite. Between the Sphalerite and Fluorite there is a bed of radial groups of white fibrous crystals of Pectolite, also partially covering Fluorite.
Second Sovietsky Mine, Dalnegorsk, Primorskij Kraj  Russia (12/1996)

Specimen size: 7 × 4.7 × 4.4 cm = 2.8” × 1.9” × 1.7”

Main crystal size: 2 × 2.1 cm = 0.8” × 0.8”

Extremely fluorescent long & short UV

Former Jan Buma collection. Number 981032

Order
Fluorite with Quartz and Calcite

MX46R9: Crystals of Fluorite formed by faces of the cube and the dodecahedron. They are transparent, with color zoning and are on matrix, with Calcite and coatings of microcrystalline Quartz.
Second Sovietsky Mine, 135↓, Dalnegorsk, Primorskij Kraj  Russia (09/2002)

Specimen size: 8.8 × 3.6 × 3.3 cm = 3.5” × 1.4” × 1.3”

Main crystal size: 0.9 × 0.7 cm = 0.4” × 0.3”

Former Jan Buma collection. Number 060401

Fluorite with Quartz and Calcite. Fluorite with Quartz and Calcite.
Sold
Fluorite with Calcite
Fluorite with Calcite.
Fluorite with Calcite.

FV87H5: Group of transparent cubic crystals that have nice green color, They stand on a matrix with some crystals of Calcite. A sample of quality from a not so common locality.
Kavalerovo, Primorskij Kraj  Russia (±2002)

Specimen size: 9 × 9 × 6 cm = 3.5” × 3.5” × 2.4”

Main crystal size: 2.8 × 1.9 cm = 1.1” × 0.7”

Intense fluorescence long & short UV

Former Jan Buma collection. Number 020632

Order

Morocco

Fluorite with Calcite

MP68S1: Fine group of cubic crystals, slightly coated by minor Calcite, that have very sharp and bright faces and edges. The violet color is exceptionally intense and it even hides, due to its intensity, the magnificent transparency, visible under an intense spotlight.
Tounfit, Boumia  Morocco (2006)

Specimen size: 7.8 × 6.4 × 2.3 cm = 3.1” × 2.5” × 0.9”

Main crystal size: 2 × 1.5 cm = 0.8” × 0.6”

Former Jan Buma collection. Number 060801

Fluorite with Calcite.
Sold
Fluorite with Quartz, Pyrite and Calcite
Fluorite with Quartz, Pyrite and Calcite.
Fluorite with Quartz, Pyrite and Calcite.

FH36H5: Crystals are cubes of clear green color on a matrix of Quartz with small groups of Pyrite. Samples from El Hamman rarely have individualized crystals so specimens like this are uncommon.
El Hamman, Meknθs  Morocco (±1999)

Specimen size: 11.4 × 9.3 × 5.1 cm = 4.5” × 3.7” × 2.0”

Main crystal size: 1.7 × 1.5 cm = 0.7” × 0.6”

Intense fluorescence long & short UV

Former Jan Buma collection. Number 991010

Sold

Africa

Fluorite with Quartz

MC46W8: Aggregate of cubo-octahedral crystals with polycrystalline surfaces on the faces of the octahedron. They are transparent, very bright, have a very deep and uniform green color and are with Quartz crystals. We’ll send the Jan Buma collection card to the buyer of the sample.
Okorusu Mine, Otjiwarongo District  Namibia (±2002)

Specimen size: 7.7 × 7.3 × 3.7 cm = 3.0” × 2.9” × 1.5”

Main crystal size: 1.4 × 1.2 cm = 0.6” × 0.5”

Zoned fluorescence long & short UV

Former Jan Buma collection. Number 020925

Fluorite with Quartz. Fluorite with Quartz.
Order
Fluorite with Calcite
Fluorite with Calcite. Fluorite with Calcite.
Fluorite with Calcite

MT96T3: Aggregate of cubic crystals with echeloned growths on the corners. Crystals are bright, transparent and have a very intense and deep green color, darker on the corners.
Okorusu Mine, Otjiwarongo District  Namibia

Specimen size: 8.4 × 7.6 × 4.1 cm = 3.3” × 3.0” × 1.6”

Main crystal size: 1.8 × 1.7 cm = 0.7” × 0.7”

Minor fluorescence long & short UV

Former Jan Buma collection. Number 070607

Order
Fluorite with Feldspar and smoky Quartz

MX97S1: Group of transparent cubic crystals of Fluorite truncated by minor octahedron faces. They have an intense green color and are on a matrix of Felspar with a crystal of smoky Quartz.
Erongo Mountain, Usakos-Omaruru, Erongo  Namibia (±2000)

Specimen size: 9.2 × 6.7 × 5.7 cm = 3.6” × 2.6” × 2.2”

Main crystal size: 0.6 × 0.6 cm = 0.2” × 0.2”

Minor fluorescence long & short UV

Former Jan Buma collection. Number 201015

Fluorite with Feldspar and smoky Quartz. Fluorite with Feldspar and smoky Quartz.
Order
Fluorite With Quartz and Schorl
Fluorite With Quartz and Schorl. Front
Front
Fluorite With Quartz and Schorl. Top
Top

MF86R9: Octahedral crystals of Fluorite neatly beveled and implanted on matrix, with Quartz and small crystals of Schorl. The crystals have a uniform green color but with a very thin recrystallization surface that has a deep mauve color.
Erongo Mountain, Usakos-Omaruru, Erongo  Namibia (±2007)

Specimen size: 6.3 × 3.8 × 3.3 cm = 2.5” × 1.5” × 1.3”

Main crystal size: 1.5 × 1 cm = 0.6” × 0.4”

Former Jan Buma collection. Number 070207

Sold
Fluorite with Feldspar

MB27S1: Group of deep green cuboctahedral crystals of Fluorite. They have a very well marked color zoning of darker green shades. They are with a very kaolinized indeterminate Feldspar and a Beryl crystal on the back of the sample.
Erongo Mountain, Usakos-Omaruru, Erongo  Namibia (±2006)

Specimen size: 6.7 × 6.2 × 3.1 cm = 2.6” × 2.4” × 1.2”

Main crystal size: 2.7 × 2.1 cm = 1.1” × 0.8”

Former Jan Buma collection. Number 061110

Fluorite with Feldspar.
Sold
Fluorite
Fluorite. Fluorite.

MG56R9: Group of octahedral crystals with very well defined faces and edges. They are translucent and bright and have an intense and uniform green color.
Riemvasmaak, Gordonia, Namaqualand, Northern Cape  South Africa (±2007)

Specimen size: 7 × 5.6 × 3.1 cm = 2.8” × 2.2” × 1.2”

Main crystal size: 2.4 × 2.2 cm = 0.9” × 0.9”

Former Jan Buma collection. Number 070904

Sold

South America

Fluorite with Pyrite, Sphalerite and Quartz

FV63T3: Group of very sharp cubic crystals of Fluorite that show a uniform and clear green color and have inclusions of Sphalerite and Pyrite and are partially coated by microcrystalline Quartz. The matrix is a group of very well defined crystals of Sphalerite, with small crystals of Pyrite and with Quartz on the base of the piece.
Mina Huanzala, Huallanca, Dos de Mayo, Huαnuco  Peru (±1999)

Specimen size: 5.7 × 4.4 × 3.3 cm = 2.2” × 1.7” × 1.3”

Main crystal size: 1.6 × 1.3 cm = 0.6” × 0.5”

Fluorescent long & short UV

Former Jan Buma collection. Number 990301

Fluorite with Pyrite, Sphalerite and Quartz. Fluorite with Pyrite, Sphalerite and Quartz.
Order
Fluorite with Barite, Pyrite and Calcite
Fluorite with Barite, Pyrite and Calcite. Fluorite with Barite, Pyrite and Calcite.

FP60T3: Echeloned growths of cubic crystals of Fluorite that are transparent and practically colorless. On matrix, with small crystals of Pyrite, white laminar Barite and scoriaceous Calcite that is intensely fluorescent.
Mina Huanzala, Huallanca, Dos de Mayo, Huαnuco  Peru (±2005)

Specimen size: 11.4 × 5.8 × 4.9 cm = 4.5” × 2.3” × 1.9”

Main crystal size: 2.2 × 2.2 cm = 0.9” × 0.9”

Calcite extremely fluorescent long & short UV

Former Jan Buma collection. Number 050402

Order
Calcite with Fluorite and Siderite

FA13S5: Fanlike aggregates of very acute scalenohedral crystals of Calcite with cubic beveled crystals of Fluorite, very well defined, transparent, very bright and of a very clear blue color. On some of the Calcite crystals some small growths of Siderite have grown.
Mina Huanzala, Huallanca, Dos de Mayo, Huαnuco  Peru (±2003)

Specimen size: 10.2 × 10.1 × 5.9 cm = 4.0” × 4.0” × 2.3”

Main crystal size: 0.5 × 0.5 cm = 0.2” × 0.2”

Fluorescent long & short UV

Former Jan Buma collection. Number 030907

Calcite with Fluorite and Siderite. Calcite with Fluorite and Siderite.
Sold
Octahedral Fluorite with Quartz
Octahedral Fluorite with Quartz. Front
Front
Octahedral Fluorite with Quartz. Top
Top

MV47S5: A crystal of considerable size for the locality. It is octahedral, with polycrystalline growths on its faces, having an intense and deep green color. It is on a base of Quartz crystals.
Mina Huallapon, Pasto Bueno, Pallasca, Ancash  Peru

Specimen size: 8.9 × 8.5 × 8.3 cm = 3.5” × 3.3” × 3.3”

Very fluorescent long & short UV

Former Jan Buma collection. Number 040317

Order
Octahedral Fluorite with Quartz

FL14K9: Intense green octahedral crystals on an attractive snowy white Quartz crystal matrix.
Amana, Formaciσn Papachacra, Belιn, Catamarca  Argentina (±2004)

Specimen size: 6.7 × 4.9 × 2.5 cm = 2.6” × 1.9” × 1.0”

Main crystal size: 1.5 × 1.4 cm = 0.6” × 0.6”

Fluorescent long & short UV

Former Jan Buma collection. Number 040514

Octahedral Fluorite with Quartz. Octahedral Fluorite with Quartz.
Sold

China

Fluorite with Barite and Quartz
Fluorite with Barite and Quartz. Front
Front
Fluorite with Barite and Quartz. Side
Side
Fluorite with Barite and Quartz.

MV86W8: Cubo-octahedral crystals of Fluorite whose faces are strongly polycrystalline, giving them an almost spherical shape. They have an intense violet color, are partially coated by yellow crystals of Barite, and are on a Quartz matrix. We’ll send the Jan Buma collection card to the buyer of the sample.
Dachang, Nandan, Hechi, Guangxi  China (±2004)

Specimen size: 18.5 × 7.2 × 3.3 cm = 7.3” × 2.8” × 1.3”

Main crystal size: 1.4 × 1.2 cm = 0.6” × 0.5”

Former Jan Buma collection. Number 040705

Sold
Fluorite with Ferberite, Quartz and Muscovite

MM13W8: Group of transparent and bright cubic crystals of Fluorite with two very well defined crystals of Ferberite. With crystals of Quartz and sheets of Muscovite. We’ll send the Jan Buma collection card to the buyer of the sample.
Yaogangxian Mine, Yizhang, Chenzhou, Hunan  China (±2007)

Specimen size: 4.7 × 2.8 × 3.3 cm = 1.9” × 1.1” × 1.3”

Main crystal size: 2.2 × 1.5 cm = 0.9” × 0.6”

Fluorescent long & short UV

Former Jan Buma collection. Number 070205

Fluorite with Ferberite, Quartz and Muscovite. Front
Front
Fluorite with Ferberite, Quartz and Muscovite. Top
Top
Sold
Fluorite with Quartz
Fluorite with Quartz. Front
Front
Fluorite with Quartz. Side
Side

MB27W8: Crystal of Fluorite implanted on a Quartz crystal. It has transparent and smooth cubic faces and fine echeloned polycrystalline growths on the octahedron and the dodecahedron that gives the crystal a partially curved aspect. The faces of the cube are practically colorless while the edges have a deep violet color. We’ll send the Jan Buma collection card to the buyer of the sample.
Yaogangxian Mine, Yizhang, Chenzhou, Hunan  China (±2003)

Specimen size: 6.6 × 4.7 × 4 cm = 2.6” × 1.9” × 1.6”

Main crystal size: 3 × 3 cm = 1.2” × 1.2”

Minor fluorescence long & short UV

Former Jan Buma collection. Number 061202

Order
Fluorite with Quartz, Dolomite, Ferberite and Muscovite

MR96W8: Aggregate of cubic crystals of Fluorite, very transparent and bright, with a sky blue color and echeloned polycrystalline growths. They are with a crystal of Quartz partially coated by white Dolomite, small leafy Muscovite and small black crystals of Ferberite. We’ll send the Jan Buma’s collection card to the buyer of the sample.
Yaogangxian Mine, Yizhang, Chenzhou, Hunan  China (±2008)

Specimen size: 7.5 × 5.2 × 3.4 cm = 3.0” × 2.0” × 1.3”

Main crystal size: 3.4 × 3.3 cm = 1.3” × 1.3”

Minor fluorescence long & short UV

Former Jan Buma collection. Number 080701

Fluorite with Quartz, Dolomite, Ferberite and Muscovite. Front
Front
Fluorite with Quartz, Dolomite, Ferberite and Muscovite. Side
Side
Sold
Fluorite with Calcite
Fluorite with Calcite. Fluorite with Calcite.

MR49W8: Aggregate of very sharp cubic crystals that are very bright, transparent and with an intense, deep and uniform color. We’ll send the Jan Buma collection card to the buyer of the sample.
Yaogangxian Mine, Yizhang, Chenzhou, Hunan  China (±2007)

Specimen size: 8.3 × 7.5 × 5.5 cm = 3.3” × 3.0” × 2.2”

Main crystal size: 2.9 × 2.8 cm = 1.1” × 1.1”

Former Jan Buma collection. Number 070402

Order
Quartz with Muscovite inclusions, Fluorite and Dolomite

ME76W8: Floater group of Quartz crystals with phantom growths. They are partially coated by transparent cubic crystals of Fluorite, extraordinarily bright and with a neat sky blue color, and by small White crystals of Dolomite on the back. We’ll send the Jan Buma collection card to the buyer of the sample.
Yaogangxian Mine, Yizhang, Chenzhou, Hunan  China (±2008)

Specimen size: 9.6 × 6.8 × 3.3 cm = 3.8” × 2.7” × 1.3”

Main crystal size: 1.6 × 1.1 cm = 0.6” × 0.4”

Fluorescent long UV & minor fluorescence short UV

Former Jan Buma collection. Number 081001

Quartz with Muscovite inclusions, Fluorite and Dolomite. Quartz with Muscovite inclusions, Fluorite and Dolomite.
Order
Fluorite with Quartz
Fluorite with Quartz. Fluorite with Quartz.

MH46W8: Aggregate of violet blue cubic crystals of Fluorite. Transparent and bright, they are partially coated by Quartz crystals, some of them doubly terminated. We’ll send the Jan Buma collection card to the buyer of the sample.
Yaogangxian Mine, Yizhang, Chenzhou, Hunan  China

Specimen size: 10.3 × 6.2 × 3.2 cm = 4.1” × 2.4” × 1.3”

Main crystal size: 1.1 × 1 cm = 0.4” × 0.4”

Former Jan Buma collection. Number 060201

Sold
Topaz with Fluorite, Arsenopyrite, Quartz and Calcite

MD67W8: A very unusual combination from this Chinese mine of Topaz crystals, with very well defined faces and between colorless and white, plus cubic crystals of Fluorite that are transparent, very bright, with a clear lilac color and geometric zoning. They all are on matrix with crystals of Calcite, Arsenopyrite and Quartz. We’ll send the Jan Buma collection card to the buyer of the sample.
Yaogangxian Mine, Yizhang, Chenzhou, Hunan  China (±2004)

Specimen size: 6.9 × 6.8 × 2.6 cm = 2.7” × 2.7” × 1.0”

Fluorescent short UV

Former Jan Buma collection. Number 041003

Topaz with Fluorite, Arsenopyrite, Quartz and Calcite. Topaz with Fluorite, Arsenopyrite, Quartz and Calcite.
Order
Fluorite with Quartz and inclusions
Fluorite with Quartz and inclusions. Front
Front
Fluorite with Quartz and inclusions. Top
Top

MA86T1: Group of transparent cubic crystals with very sharp faces and edges, intense blue color and violet reflections and with white microcrystalline inclusions. Their matrix is a group of Quartz crystals some of them doubly terminated.
Yaogangxian Mine, Yizhang, Chenzhou, Hunan  China (±2007)

Specimen size: 6.4 × 3.9 × 3.8 cm = 2.5” × 1.5” × 1.5”

Main crystal size: 3.4 × 2.9 cm = 1.3” × 1.1”

Fluorescent long UV & minor fluorescence short UV

Former Jan Buma collection. Number 070906

Sold
Fluorite with Muscovite, Quartz and Arsenopyrite

To see a larger 3D image please
click here or on the image

MG68T1: Group of crystals formed by the dominant faces of the cube, beveled by the dodecahedron and truncated by an octahedron that is poorly defined and has curvatures and is rough surfaced. It is on matrix, and has been sawn on the back to give a good balance to the sample. With Muscovite, white Quartz and small crystals of Arsenopyrite.
Yaogangxian Mine, Yizhang, Chenzhou, Hunan  China (10/2006)

Specimen size: 12.6 × 8.8 × 4.6 cm = 5.0” × 3.5” × 1.8”

Main crystal size: 2.8 × 2.2 cm = 1.1” × 0.9”

Fluorescent long UV & minor fluorescence short UV

Former Jan Buma collection. Number 070302

Fluorite with Muscovite, Quartz and Arsenopyrite. Fluorite with Muscovite, Quartz and Arsenopyrite.
Order
Fluorite with Quartz
Fluorite with Quartz. Fluorite with Quartz.

MX27T1: Group of transparent cubic crystals with very well defined faces and edges and a pale green color with small areas of intense and deep violet color. On matrix, with small crystals of Quartz.
Xianghuapu Mine, Linwu, Chenzhou, Hunan  China (±2001)

Specimen size: 11.8 × 11.4 × 3.6 cm = 4.6” × 4.5” × 1.4”

Main crystal size: 1.7 × 1.6 cm = 0.7” × 0.6”

Minor fluorescence long UV

Former Jan Buma collection. Number 011039

Order
Fluorite with inclusions

MD67T1: An especially esthetic group of transparent cubic crystals. They are bright and have an intense and uniform green color and inclusions that are oriented as phantom growths. The sample is especially elegant, due to its arched shape.
Xianghuapu Mine, Linwu, Chenzhou, Hunan  China (±2007)

Specimen size: 9.2 × 8.7 × 3.3 cm = 3.6” × 3.4” × 1.3”

Main crystal size: 1.8 × 1.7 cm = 0.7” × 0.7”

Former Jan Buma collection. Number 070605

Fluorite with inclusions. Front
Front
Fluorite with inclusions. Rear
Rear
Sold
Rhodochrosite with Fluorite, Fluorapatite and Quartz
Rhodochrosite with Fluorite, Fluorapatite and Quartz. Rhodochrosite with Fluorite, Fluorapatite and Quartz.

MX92S1: Lenticular crystals of Rhodochrosite, one of them clearly dominant, that have a deeper color and more "fresh" aspect than usual. They are with Quartz, beveled green crystals of Fluorite and small bluish crystals of Fluorapatite.
Wudong Mine, Liubao ("Babu"), Cangwu County, Wuzhou, Guangxi  China (±2004)

Specimen size: 10.9 × 6.3 × 4.2 cm = 4.3” × 2.5” × 1.7”

Main crystal size: 2.2 × 1.4 cm = 0.9” × 0.6”

Fluorapatite very fluorescent long & short UV

Former Jan Buma collection. Number 040708

Sold
Octahedral Fluorite with Quartz

FT90J5: Two very well defined octahedral crystals of very intense color contrasting on a matrix of white Quartz.
The specimen is from Jan Buma collection and we’ll send the collection card to the buyer of the sample.
Ruyuan, Guangdong  China (±2002)

Specimen size: 12 × 11 × 7 cm = 4.7” × 4.3” × 2.8”

Main crystal size: 7.6 × 6.7 cm = 3.0” × 2.6”

Fluorescent long & short UV

Former Jan Buma collection. Number 020604

Octahedral Fluorite with Quartz.
Sold

Asia

Fluorite with Albite (Pericline), Spessartine and Muscovite
Fluorite with Albite (Pericline), Spessartine and Muscovite. Fluorite with Albite (Pericline), Spessartine and Muscovite.

FG76T3: Cubo-octahedral crystals of Fluorite with echeloned growths, and with transparent crystals of Spessartine on their surface, on a matrix with twinned crystals of Albite (Pericline) and leafy growths of Muscovite. We especially note the locality where samples of crystallized Fluorite are really scarce.
Yuno Mine, Shigar Valley, Baltistan  Pakistan (±2002)

Specimen size: 9.3 × 6.4 × 2.9 cm = 3.7” × 2.5” × 1.1”

Main crystal size: 1.7 × 1.2 cm = 0.7” × 0.5”

Fluorescence short UV & low fluorescence long UV

Former Jan Buma collection. Number 021023

Order
Fluorite with Pericline, Spessartine and Mica

FA66J7: A very curious crystallization of the Fluorite on apparently prismatic crystals that, added to the combination of its forms looks like a Beryl crystal. The bluish-green color reinforces this appearance. The matrix is Albite (variety Pericline) crystals and also some small crystals of Spessartine.
Yuno Mine, Shigar Valley, Baltistan  Pakistan (±2002)

Specimen size: 7.8 × 7.8 × 5 cm = 3.1” × 3.1” × 2.0”

Main crystal size: 1.7 × 0.4 cm = 0.7” × 0.2”

Former Jan Buma collection. Number 021024

Fluorite with Pericline, Spessartine and Mica. Fluorite with Pericline, Spessartine and Mica.
Sold
Fluorite with Quartz and Opal
Fluorite with Quartz and Opal.

NG14N1: Creamy globular growth on a matrix of Quartz crystals. Fluorite is coated by a thin layer of Opal, fluorescent under the ultraviolet light.
Ajanta, Maharashtra  India (±2000)

Specimen size: 6.8 × 4.2 × 3.1 cm = 2.7” × 1.7” × 1.2”

Main crystal size: 3.1 × 2.7 cm = 1.2” × 1.1”

Minor fluorescence long & short UV

Former Jan Buma collection. Number 200612

Order
Fluorite with Quartz

FZ63K9: Spherical Fluorite, well defined, showing a pale yellow color and thinly covered by a white layer, probably Opal, fluorescent in both waves. The sphere is on a Quartz crystal surface.
Pandulena Hill, Nasik, Maharashtra  India (±2003)

Specimen size: 8.9 × 5.2 × 2.4 cm = 3.5” × 2.0” × 0.9”

Main crystal size: 1.6 × 1.6 cm = 0.6” × 0.6”

Fluorescent long & short UV

Former Jan Buma collection. Number 030609

Fluorite with Quartz.
Sold
Fluorite with Quartz, Calcite and Opal
Fluorite with Quartz, Calcite and Opal.

FC96J7: Very curious formation of a rounded aspect, with parallel sutures and changes of color, from the honey yellow shade to a darker color on the upper part and the opaque white of a coating of fluorescent Opal included inside the Fluorite ball. On matrix with Quartz and Calcite.
Ajanta, Jalgaon, Maharashtra  India (±2000)

Specimen size: 9.5 × 7.4 × 5 cm = 3.7” × 2.9” × 2.0”

Opal Fluorescent long & short UV

Former Jan Buma collection. Number 200611

Order
Fluorite on Quartz with Opal

EB66K0: Huge complex ball of Fluorite on Quartz with a plus: some minor fluorescent Opal covering the Quartz on the right side of the specimen, and a thick coating of fluorescent Opal is included inside the Fluorite ball contrasting with it, due to its intense pearly white color. Different!.
The specimen's photo has been reviewed and published in the magazine ‘Rocks & Minerals’ on page 301 in the volume 83, number 4.
Mahodari, Nasik, Maharashtra  India (2003)

Specimen size: 9.2 × 5.8 × 3.9 cm = 3.6” × 2.3” × 1.5”

Main crystal size: 3.2 × 3.2 cm = 1.3” × 1.3”

Former Jan Buma collection. Number 031203

Opal minor fluorescence long & short UV

Fluorite on Quartz with Opal. Fluorite on Quartz with Opal.
Sold
Fluorite on Quartz
Fluorite on Quartz.
Fluorite on Quartz.

FB36G6: Between the Quartz crystals appears a sphere of Fluorite and, furthermore, from the same sphere starts some sceptered Quartz, different in its color and shape to the Quartz on the matrix. The lower part of the piece is hollowed, as if it growth was covering an older material.
Mahodari, Nasik, Maharashtra  India (±2000)

Specimen size: 8.5 × 6 × 6.7 cm = 3.3” × 2.4” × 2.6”

Main crystal size: 2.6 × 2.3 cm = 1.0” × 0.9”

Former Jan Buma collection. Number 201011

Order

THE JAN BUMA INDIAN ZEOLITE COLLECTION


Apophyllite-(KF) with Okenite

JH7T3: Short prismatic crystals with small polycrystalline terminations, of uniform clear green color and on a matrix of Okenite.
Jalgaon, Maharashtra  India (±2001)

Specimen size: 4.7 × 2.8 × 2.3 cm = 1.9” × 1.1” × 0.9”

Main crystal size: 1.5 × 1.4 cm = 0.6” × 0.6”

Former Jan Buma collection. Number 010423

Apophyllite-(KF) with Okenite.
Sold
Apophyllite-(KF) with Quartz and Stilbite
Apophyllite-(KF) with Quartz and Stilbite.

JE57T3: Very acute doubly terminated crystals of Apophyllite-(KF), very bright and colorless, with slightly pink laminar crystals of Stilbite and implanted on a stalactitic Quartz.
Jalgaon, Maharashtra  India (±1998)

Specimen size: 5.8 × 3.4 × 1.7 cm = 2.3” × 1.3” × 0.7”

Main crystal size: 1.2 × 0.3 cm = 0.5” × 0.1”

Former Jan Buma collection. Number 980709

Sold
Apophyllite-(KF) with Quartz

JD58T3: Acute doubly terminated dipyramidal crystals of Apophyllite-(KF), colorless and transparent, they are implanted on a stalactitic growth of Quartz and with recrystallizations, also of Quartz, and small laminar crystals of Stilbite.
Jalgaon, Maharashtra  India (±2001)

Specimen size: 10.4 × 6.7 × 4.4 cm = 4.1” × 2.6” × 1.7”

Main crystal size: 2.7 × 1.7 cm = 1.1” × 0.7”

Former Jan Buma collection. Number 010423

Apophyllite-(KF) with Quartz. Front
Front
Apophyllite-(KF) with Quartz. Rear
Rear
Sold
Apophyllite-(KF) with Heulandite
Apophyllite-(KF) with Heulandite.
Apophyllite-(KF) with Heulandite.

JR6F2: Tabular crystals are uncommon in Indian Apophyllite-(KF). In this case they are also very well defined and aerial, with a very light green tone and a good contrast with the cream-colored Heulandite.
Jalgaon, Maharashtra  India (±2002)

Specimen size: 9.5 × 6 × 4 cm = 3.7” × 2.4” × 1.6”

Main crystal size: 2.5 × 2.5 cm = 1.0” × 1.0”

Former Jan Buma collection. Number 020520

Order
Apophyllite-(KF) with Stilbite and inclusions

JV47F2: The crystals of Apophyllite-(KF) are tabular, which is not very common in Indian specimens. It is partially included by Chlorite and on a matrix of pink Stilbite.
Nasik, Maharashtra  India (±1999)

Specimen size: 11 × 10 × 4 cm = 4.3” × 3.9” × 1.6”

Main crystal size: 2.4 × 2.3 cm = 0.9” × 0.9”

Former Jan Buma collection. Number 991024

Apophyllite-(KF) with Stilbite and inclusions.
Apophyllite-(KF) with Stilbite and inclusions.
Order
Apophyllite-(KF)
Apophyllite-(KF). Front
Front
Apophyllite-(KF). Rear
Rear

JM97F2: The group is particularly esthetic because the crystals are elongated by the sharp pyramid that accompanies the prism. They are also noticeable for their transparency, brilliance and sharp clear green color.
Jalgaon, Maharashtra  India (±2002)

Specimen size: 8 × 5 × 4 cm = 3.1” × 2.0” × 1.6”

Main crystal size: 3 × 1 cm = 1.2” × 0.4”

Former Jan Buma collection. Number 020519

Sold
Apophyllite-(KF) with Scolecite and Stilbite

JQ6F1: Your eyes are attracted by the softness and chromatic harmony of this combination of three minerals: white Stilbite and Scolecite with crystalline green Apophyllite-(KF). All of this on a base that intensifies it even more, red due to the presence of iron oxides.
Nasik, Maharashtra  India (±1994)

Specimen size: 7 × 5 × 3 cm = 2.8” × 2.0” × 1.2”

Main crystal size: 3.3 × 1.5 cm = 1.3” × 0.6”

Former Jan Buma collection. Number 941003

Apophyllite-(KF) with Scolecite and Stilbite. Apophyllite-(KF) with Scolecite and Stilbite.
Sold
Calcite
Calcite. Calcite.

JE13T3: Rhombohedral crystals of Calcite with slightly curved faces and edges. They are translucent, bright and have a uniform yellow color and are on a matrix of botryoidal Quartz (Chalcedony).
Bombay District, Maharashtra  India (±2001)

Specimen size: 13.9 × 9.4 × 3.2 cm = 5.5” × 3.7” × 1.3”

Main crystal size: 4.3 × 2.7 cm = 1.7” × 1.1”

Former Jan Buma collection. Number 011122

Sold
Calcite with Stilbite and Apophyllite-(KF)

JA37T3: Floater rhombohedral crystal with slightly curved faces and edges and partially coated by white laminar crystals of Stilbite and equidimensional crystals of Apophyllite-(KF) with a very well marked color zonibg, green in the center of the prisms and colorless on the terminations.
Poona, Maharashtra  India

Specimen size: 14.8 × 10.2 × 5.2 cm = 5.8” × 4.0” × 2.0”

Former Jan Buma collection. Number 020849

Calcite with Stilbite and Apophyllite-(KF). Front
Front
Calcite with Stilbite and Apophyllite-(KF). Rear
Rear
Calcite with Stilbite and Apophyllite-(KF).
Sold
Cavansite on Stilbite
Cavansite on Stilbite.
Cavansite on Stilbite.

JC6J7: Cavansite forms groups and isolated acicular crystals of an intense blue color that cover a group of crystals of Stilbite. An original sample.
Wagholi Quarry, Poona, Maharashtra  India (±2003)

Specimen size: 8.7 × 5 × 4.2 cm = 3.4” × 2.0” × 1.7”

Main crystal size: 0.4 × 0.1 cm = 0.2” × 0.0”

Former Jan Buma collection. Number 030302

Sold
Chabazite-Ca

JD76E8: Surrounded by small crystals, this is a parallel growth of Chabazite crystals, with well defined edges, and no damage. They are on a matrix of Stilbite and small crystals of Scolecite. Chabazite is not a common mineral in this region, so this is unusual as well as esthetic.
Malad quarry, Bombay, Maharashtra  India (±2003)

Specimen size: 7 × 6.9 × 5 cm = 2.8” × 2.7” × 2.0”

Main crystal size: 1.1 × 1.1 cm = 0.4” × 0.4”

Former Jan Buma collection. Number 030613

Chabazite-Ca.
Chabazite-Ca.
Sold


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