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Mineral Specimens - page 17
The Jan Buma Collections

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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.

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 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 Calcite
Fluorite with Calcite. Front
Front
Fluorite with Calcite. Rear
Rear
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, Ozark-Mahoning group, Cave-in-Rock Sub-District, 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



Sold
Fluorite with Sphalerite and Baryte

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 Baryte and small crystals of Sphalerite. An American classic.
Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, 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



Fluorite with Sphalerite and Baryte. Front
Front
Fluorite with Sphalerite and Baryte. Side
Side
Fluorite with Sphalerite and Baryte. Fluorite with Sphalerite and Baryte.
Sold

Mexico - Canada

Fluorite with Creedite
Fluorite with Creedite. 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, Municipio de 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



Sold
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 de Zaragoza  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



Fluorite with Celestine. Fluorite with Celestine.
Sold
Fluorite
Fluorite. Front
Front
Fluorite. Side
Side

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



Sold

Spain

Fluorite with Calcite, Dolomite and Pyrite

FT60AD3: Druse of transparent cubic Fluorite crystals, which are very bright and with a uniform yellow color. They are partially coated by complex Calcite crystals, small rhombohedral Dolomite crystals and Pyrite microcrystals.
The sample is from the Jan Buma collection (num. 950912), whose card we’ll send to the buyer.
Moscona Mine, El Llano, Solνs, Corvera de Asturias, Comarca Avilιs, Asturias, Principality of Asturias  Spain (±1995)

Specimen size: 9.7 × 9.5 × 8 cm = 3.8” × 3.7” × 3.1”

Main crystal size: 1.4 × 1.3 cm = 0.6” × 0.5”

Zoned fluorescence long & short UV

Former Jan Buma collection. Number 950912



Fluorite with Calcite, Dolomite and Pyrite. Front
Front
Fluorite with Calcite, Dolomite and Pyrite. Side
Side
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.
Gloria Mine, La Hortezuela, Hornachuelos-Espiel, Comarca Valle Medio del Guadalquivir, Cσrdoba, Andalusia  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 Baryte crystals.
Boldut Mine, Cavnic mining area, Cavnic, Maramures  Romania

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.
Sold
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 mining area, Cavnic, Maramures  Romania (±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

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, Moulins, Allier, Auvergne-Rhτne-Alpes  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



Fluorite with Quartz. Fluorite with Quartz.
Sold
Octahedral Fluorite with smoky Quartz
Octahedral Fluorite with smoky Quartz. 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.
The specimen has been published in the magazine ‘extraLAPIS’ on page 41, number 44, "Uri".
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



Sold
Fluorite with Quartz and Orthoclase

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 & minor fluorescence long UV

Former Jan Buma collection. Number 060605



Fluorite with Quartz and Orthoclase. Front
Front
Fluorite with Quartz and Orthoclase. Side
Side
Sold
Fluorite with Baryte, Chalcopyrite and Calcite
Fluorite with Baryte, Chalcopyrite and Calcite. Fluorite with Baryte, 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 Baryte. The sample is very typical of this classic German mining area.
Wφlsendorf Mining District, Upper Palatinate/Oberpfalz, Bavaria/Bayern  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



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, Ireshopeburn, Weardale, North Pennines Orefield, County 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, Ireshopeburn, Weardale, North Pennines Orefield, County 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 Mining District, Attikν (Attica) Prefecture  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

Pyrrhotite
Pyrrhotite.

ME86AD3: Aggregate of very sharp platy Pyrrhotite crystals with polycrystalline growths. We note the fineness of the sample and the scarcity of such good pyrrhotites from this locality. On the back of the aggregate one of the crystals is broken.
The sample is from the Jan Buma collection (num. 070211), whose card we’ll send to the buyer.
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province  China (±2007)

Specimen size: 4.1 × 3.3 × 1.7 cm = 1.6” × 1.3” × 0.7”

Main crystal size: 2.7 × 2 cm = 1.1” × 0.8”

Former Jan Buma collection. Number 070211



Sold
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 Sovetskii Mine, Dalnegorsk, Kavalerovo Mining District, Primorskiy Kray, Far-Eastern Region  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



Octahedral Fluorite with Pectolite.
Order
Fluorite with Quartz and Calcite
Fluorite with Quartz and Calcite. 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 Sovetskii Mine, Dalnegorsk, Kavalerovo Mining District, Primorskiy Kray, Far-Eastern Region  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



Sold
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.
Kavalerovo Mining District, Primorskiy Kray, Far-Eastern Region  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



Fluorite with Calcite.
Fluorite with Calcite.
Order
Fluorite with Quartz
Fluorite with Quartz. Front
Front
Fluorite with Quartz. Side
Side

MT66AA6: Fluorite aggregate with very well defined faces and edges, with the cube and dodecahedron forms in approximately equal development. The crystals are transparent to translucent, blue with a slightly violet hue along some edges, and share the matrix with small Quartz crystals and white lenticular Calcite crystals. Very unusual and of a high quality that is typical of Jan Buma specimens.
Nikolaevski Mine, Dalnegorsk, Kavalerovo Mining District, Primorskiy Kray, Far-Eastern Region  Russia (04/2003)

Specimen size: 10.1 × 7.5 × 5.7 cm = 4.0” × 3.0” × 2.2”

Main crystal size: 4.1 × 3 cm = 1.6” × 1.2”

Former collection of Jan Buma




Sold

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, Midelt Province, Drβa-Tafilalet Region  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, Meknθs Prefecture, Drβa-Tafilalet Region  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 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, Erongo Region  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 with Feldspar and smoky Quartz
Fluorite with Feldspar and smoky Quartz. 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, Erongo Region  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



Sold
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, Otjozondjupa Region  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



Fluorite with Calcite. Fluorite with Calcite.
Sold

South America

Fluorite with Quartz
Fluorite with Quartz. Front
Front
Fluorite with Quartz. Side
Side
Fluorite with Quartz.

MY88AD3: Aggregates of Fluorite crystals formed by the cube and the octahedron. They are translucent, bright, have a uniform pale green color and are implanted on a matrix of lovely Quartz crystals. The sample is very esthetic, and is from the Jan Buma collection (num. 040906), whose card we’ll send to the buyer.
Huayllapon Mine (Huallapon Mine), Pasto Bueno District, Pallasca Province, Ancash Department  Peru (±2004)

Specimen size: 17 × 15 × 9 cm = 6.7” × 5.9” × 3.5”

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

Fluorescent long & short UV

Former Jan Buma collection. Number 040906



Sold
Octahedral Fluorite with Quartz

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.
Huayllapon Mine (Huallapon Mine), Pasto Bueno District, Pallasca Province, Ancash Department  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



Octahedral Fluorite with Quartz. Front
Front
Octahedral Fluorite with Quartz. Top
Top
Sold
Fluorite with Pyrite, Sphalerite and Quartz
Fluorite with Pyrite, Sphalerite and Quartz. 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.
Huanzala Mine, Huallanca District, Dos de Mayo Province, Huαnuco Department  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



Order
Fluorite with Baryte, 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 Baryte and scoriaceous Calcite that is intensely fluorescent.
Huanzala Mine, Huallanca District, Dos de Mayo Province, Huαnuco Department  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



Fluorite with Baryte, Pyrite and Calcite. Fluorite with Baryte, Pyrite and Calcite.
Sold
Octahedral Fluorite with Microcline
Octahedral Fluorite with Microcline. Front
Front
Octahedral Fluorite with Microcline. Side
Side

FB13AB9: Complex Fluorite crystals with the clearly predominant form of the octahedron and slightly curved dodecahedral faces. They are between transparent and translucent, have a lilac color and have associated small Microcline growths and smoky Quartz. The main octahedral-shaped crystal is huge for the locality.
Papachacra Formation, Portezuelo Granite, Belen Department, Catamarca  Argentina (±2005)

Specimen size: 7.5 × 7.2 × 6.3 cm = 3.0” × 2.8” × 2.5”

Main crystal size: 6.4 × 6.2 cm = 2.5” × 2.4”

Former Jan Buma collection. Number 050111



Order

China

Fluorite

MZ56AB9: Spheroidal Fluorite growth with crystalline and skeletal growths on the back. It has a very intense and uniform bluish-violet color. For some reason this mine always produced a very limited number of samples, and even less with such quality.
Guxian, Minggang, Shihe District, Xinyang Prefecture, Henan Province  China (±2007)

Specimen size: 6.9 × 5.7 × 3.5 cm = 2.7” × 2.2” × 1.4”

Fluorescence short UV & minor fluorescence long UV

Former Jan Buma collection. Number 070604



Fluorite.
Order
Fluorite with Calcite, Scheelite and Quartz
Fluorite with Calcite, Scheelite and Quartz. Fluorite with Calcite, Scheelite and Quartz.

MG86AB9: Aggregate of very sharp cubic Fluorite crystals that are transparent, have a pale lilac color, are partially coated by lenticular white Calcite crystals and are on matrix, with small dipyramidal Scheelite crystals. The sample is from the good times of the Yaogangxian mine and its quality is a demonstration of how good those times were.
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province  China (±2006)

Specimen size: 8.5 × 7 × 6.2 cm = 3.3” × 2.8” × 2.4”

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

Minor fluorescence short UV

Former Jan Buma collection. Number 061109



Sold
Fluorite with Ferberite and Muscovite

FM27AA9: Two very sharp cubic Fluorite crystals, transparent, very bright and with a blue color with violet shades, on a group of very well defined and bright Ferberite crystals partially coated by small leafy Muscovite aggregates. A very esthetic and especially graceful miniature.
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province  China (±2001)

Specimen size: 4.3 × 3.7 × 2 cm = 1.7” × 1.5” × 0.8”

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

Minor fluorescence long & short UV

Former Jan Buma collection. Number 080102



Fluorite with Ferberite and Muscovite. Front
Front
Fluorite with Ferberite and Muscovite. Side
Side
Order
Fluorite with Calcite
Fluorite with Calcite. Fluorite with Calcite.

FH86AA9: Aggregate of Fluorite crystals with the forms of the cube and the dodecahedron, and with very well defined echeloned growths. They are very clear and bright, have a color between violet and blue with very well defined geometrical color zoning and are with lenticular Calcite crystals. It is from a locality that seldom offers samples of such quality.
Huangshaping Mine, Guiyang, Chenzhou Prefecture, Hunan Province  China (±2004)

Specimen size: 5.7 × 4.8 × 5 cm = 2.2” × 1.9” × 2.0”

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

Former Jan Buma collection. Number 040707



Sold
Scheelite with Fluorite, Dolomite and Quartz

FC67AA9: Very sharp, translucent and almost colorless Scheelite crystals on an aggregate of transparent small, cubic, Fluorite crystals with a clear lilac color, with Quartz crystals and partially coated by rhombohedral Dolomite. Unusual association for this “modern-classic,” from a mine which has not produced samples of quality for a long time.
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province  China (±2007)

Specimen size: 7.1 × 4.2 × 4.3 cm = 2.8” × 1.7” × 1.7”

Extremely fluorescent short UV

Former Jan Buma collection. Number 070209



Scheelite with Fluorite, Dolomite and Quartz. Scheelite with Fluorite, Dolomite and Quartz.
Order
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 Prefecture, Hunan Province  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



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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 Prefecture, Hunan Province  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.
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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 Prefecture, Hunan Province  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



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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 Prefecture, Hunan Province  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.
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Topaz with Fluorite, Arsenopyrite, Quartz and Calcite
Topaz with Fluorite, Arsenopyrite, Quartz and Calcite. 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 Prefecture, Hunan Province  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



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Octahedral Fluorite with Quartz

FE70AA9: Aggregate of octahedral Fluorite crystals beveled by the dodecahedron, sharper than usual for the locality, translucent, with a deep violet color and on Quartz matrix. Great sample.
Wushan, De'an, Jiangxi  China (±2006)

Specimen size: 7.5 × 5.6 × 4.9 cm = 3.0” × 2.2” × 1.9”

Main crystal size: 4 × 4 cm = 1.6” × 1.6”

Minor fluorescence long & short UV

Former Jan Buma collection. Number 060603



Octahedral Fluorite with Quartz. Octahedral Fluorite with Quartz.
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Fluorite with inclusions
Fluorite with inclusions. Front
Front
Fluorite with inclusions. Rear
Rear

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, Xianghualing Sn-polymetallic ore field, Linwu, Chenzhou Prefecture, Hunan Province  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



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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, Xianghualing Sn-polymetallic ore field, Linwu, Chenzhou Prefecture, Hunan Province  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



Fluorite with Quartz. Fluorite with Quartz.
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Fluorite with Scheelite and Muscovite
Fluorite with Scheelite and Muscovite. Front
Front
Fluorite with Scheelite and Muscovite. Side
Side

MX91W7: Cubic crystal of Fluorite with very well defined faces and edges and with a deep sky blue color. It is with a yellow dipyramidal crystal of Scheelite, all on a matrix of leafy Muscovite crystals. Due its size and quality, it is one of the best Fluorites that we had seen from this locality, which rarely produces good Fluorites and even more rarely associated with Scheelite.
The sample is with a card from the Jan Buma collection (num. 990634) that we'll send to the buyer.
Pingwu Mine, Huya township, Mount Xuebaoding, Pingwu County, Mianyang Prefecture, Sichuan Province  China (±1999)

Specimen size: 10 × 9.5 × 4.7 cm = 3.9” × 3.7” × 1.9”

Main crystal size: 3.8 × 3.6 cm = 1.5” × 1.4”

Fluorescent long & short UV

Former Jan Buma Collection. Number 990634



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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.
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Asia

Fluorite with Beryl (variety aquamarine) and Muscovite
Fluorite with Beryl (variety aquamarine) and Muscovite. Front
Front
Fluorite with Beryl (variety aquamarine) and Muscovite. Side
Side
Fluorite with Beryl (variety aquamarine) and Muscovite. Side
Side
Fluorite with Beryl (variety aquamarine) and Muscovite.

FB89AA9: Aggregate of cubo-octahedral Fluorite crystals beveled by the dodecahedron, with polycrystalline growths on their faces. They are transparent, bright, with an intense and uniform pink color and are on a Muscovite matrix with a notable group of very sharp and clear Beryl (aquamarine variety) crystals. Original.
Chumar Bakor, Nagar, Hunza Valley, Gilgit-Baltistan  Pakistan (±2002)

Specimen size: 6 × 4.5 × 4.8 cm = 2.4” × 1.8” × 1.9”

Main crystal size: 4.7 × 3.4 cm = 1.9” × 1.3”

Minor fluorescence long & short UV




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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, Shigar Valley, Skardu District, Baltistan, Gilgit-Baltistan (Northern Areas)  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 & minor fluorescence long UV

Former collection of Jan Buma. Number 021023



Fluorite with Albite (Pericline), Spessartine and Muscovite. Fluorite with Albite (Pericline), Spessartine and Muscovite.
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Fluorite with Pericline, Spessartine and Mica
Fluorite with Pericline, Spessartine and Mica. 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, Shigar Valley, Skardu District, Baltistan, Gilgit-Baltistan (Northern Areas)  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 collection of Jan Buma. Number 021024



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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.
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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, Nashik District (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



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The Jan Buma Indian Zeolite Collection


Fluorapophyllite-(K) with Heulandite-Ca

JR6F2: Tabular crystals are uncommon in Indian Fluorapophyllite-(K). 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-Ca.
Jalgaon District, 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



Fluorapophyllite-(K) with Heulandite-Ca.
Fluorapophyllite-(K) with Heulandite-Ca.
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Fluorapophyllite-(K) with Stilbite and inclusions
Fluorapophyllite-(K) with Stilbite and inclusions.
Fluorapophyllite-(K) with Stilbite and inclusions.

JV47F2: The crystals of Fluorapophyllite-(K) are tabular, which is not very common in Indian specimens. It is partially included by Chlorite and on a matrix of pink Stilbite.
Nashik District (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



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Fluorapophyllite-(K)

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 District, 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



Fluorapophyllite-(K). Front
Front
Fluorapophyllite-(K). Rear
Rear
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Fluorapophyllite-(K) with Scolecite and Stilbite
Fluorapophyllite-(K) with Scolecite and Stilbite. Fluorapophyllite-(K) 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 Fluorapophyllite-(K). All of this on a base that intensifies it even more, red due to the presence of iron oxides.
Nashik District (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



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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).
Mumbai (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



Calcite. Calcite.
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Calcite with Stilbite and Fluorapophyllite-(K)
Calcite with Stilbite and Fluorapophyllite-(K). Front
Front
Calcite with Stilbite and Fluorapophyllite-(K). Rear
Rear
Calcite with Stilbite and Fluorapophyllite-(K).

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

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

Former Jan Buma collection. Number 020849



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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, Wagholi, Pune District (Poonah District), 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



Cavansite on Stilbite.
Cavansite on Stilbite.
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Chabazite-Ca
Chabazite-Ca.
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



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