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Reference Specimens
The Jan Buma Collections

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This page gathers together specimens from the Jan Buma Collections that, because of their quality, rarity or interesting locality, we wish to maintain on our web site as reference specimens.

THE JAN BUMA FLUORITE COLLECTION


USA

Fluorite on Quartz
Fluorite on Quartz.

FE86H0: Matrix size is perfect, with a Fluorite crystal very well positioned on it. The crystal shows faces of the cube and octahedron, a less frequent combination than single octahedron. Crystal has a pleasant green light color.
Felix Mine, Azusa, Los Angeles County, California  USA

Specimen size: 5.2 × 3.9 × 3.5 cm

Main crystal size: 2.3 × 2.2 cm

Fluorescent long & short UV

Former Jan Buma collection. Number 020911


 
Fluorite with Quartz
Fluorite with Quartz

FA96G6: An elegant piece from a very unusual locality. On a bed of crystals covering the matrix there are some very sharp cubes. Their color, combining white and gray, adds sobriety to the piece.
Boulder Hill Mine, Lyon County, Nevada  USA

Specimen size: 9.7 × 6 × 5 cm

Main crystal size: 1.8 × 1.6 cm

Extremely fluorescent long & short UV

Former Jan Buma collection. Number 010615 - Former Herb Obodda collection. Number 3750


Fluorite with Quartz.
Fluorite with Quartz.
 
Analcime on Fluorite
Analcime on Fluorite. Analcime on Fluorite.

FD57G0: On a globular formation of little cubic crystals of Fluorite an Analcime crystal enhances, absolutely transparent, bright and sharp. A little jewel.
Sharon Claims, Esmeralda County, Nevada  USA (±2002)

Specimen size: 3.5 × 1.9 × 1 cm

Main crystal size: 0.6 × 0.5 cm

Extremely fluorescent long & short UV

Former Jan Buma collection. Number 020619


 
Octahedral Fluorite on Quartz

FF13H0: Both the matrix of little Quartz crystals and the Fluorite octahedron have a glazed surface. The Fluorite crystal is easy to distinguish by its light green color and the good position on the matrix, but another crystal, nearly uncolored, is hidden there too. As usually happens with a lot of samples from Jan Buma’s collection, the locality is very unusual.
Oregon Mine, Oatman District, Mohave County, Arizona  USA (±2002)

Specimen size: 5.4 × 4.6 × 3.4 cm

Main crystal size: 1.5 × 1.4 cm

Fluorescent long & short UV

Former Jan Buma collection. Number 020303


Octahedral Fluorite on Quartz.
 
Octahedral Fluorite
Octahedral Fluorite.

FF62G6: The Fluorite octahedrons of this piece are distributed "in crescendo" and just finishing in two main interpenetrated crystals. The color is curious, with a mélange of purple and green and white zones giving them a "snowy" aspect.
Monarch Claim, Wickenburg, Maricopa County, Arizona  USA

Specimen size: 4.4 × 3.9 × 3.8 cm

Main crystal size: 1.6 × 1.5 cm

Fluorescent long & short UV

Former Jan Buma collection. Number 020306


 
Fluorite with Gypsum, Calcite, Celestine and Pyrite

FR64J7: Cubic yellow crystals, very transparent and bright. They are on a matrix with white Celestine veins and with clear crystals of Gypsum.
Clay Center, Ottawa County, Ohio  USA (±1998)

Specimen size: 10.6 × 8.3 × 8.2 cm

Main crystal size: 0.9 × 0.8 cm

Extremely fluorescent long & short UV

Former Jan Buma collection. Number 980404


Fluorite with Gypsum, Calcite, Celestine and Pyrite. Fluorite with Gypsum, Calcite, Celestine and Pyrite.
 
Fluorite with Galena
Fluorite with Galena.
Fluorite with Galena.

FR16H0: A simultaneous growth of Fluorite and Galena cubes. Galena seems to be “eaten” by Fluorite. The base is a matrix with small Quartz crystals.
Blanchard Mine, Bingham, Hansonburg, Socorro County, New Mexico  USA (±2003)

Specimen size: 6.3 × 5.8 × 5.7 cm

Main crystal size: 1.5 × 1.3 cm

Fluorescent long & short UV

Former Jan Buma collection. Number 031205


 
Fluorite

FP66G0: Blue color is superb and also the sharpness and definitions of cubic crystals. A classic specimen from a classic locality.
Bingham, Hansonburg, Socorro County, New Mexico  USA (±2001)

Specimen size: 11.5 × 6.5 × 3 cm

Main crystal size: 1.2 × 1.1 cm

Fluorescent long & short UV

Former Jan Buma collection. Number 011025


Fluorite.
Fluorite.
 
Fluorite with Chalcopyrite
Fluorite with Chalcopyrite.

FE58I0: The locality is very uncommon. On the specimen the small cubic crystals of Fluorite are with very small, but also very bright, crystals of Chalcopyrite.
Pea Ridge Mine, Washington County, Missouri  USA (±2001)

Specimen size: 5.8 × 4.5 × 3 cm

Main crystal size: 0.3 × 0.2 cm

Former Jan Buma collection. Number 011001


 
Calcite with Fluorite

FH27K9: Excellent and complex crystal. Very rich in faces, of which the scalenohedron clearly dominates. Very intense color, and it rests on a base of cubic deep purple Fluorite crystals.
Rosiclare level, Denton Mine, Hardin County, Illinois  USA

Specimen size: 7.8 × 4.5 × 4.2 cm

Main crystal size: 6.6 × 3.8 cm

Fluorite & Calcite fluorescent long & short UV

Former Jan Buma collection. Number 031208


Calcite with Fluorite. Calcite with Fluorite.
 
Fluorite with Calcite
Fluorite with Calcite.

FM6F7: This group of crystals has a structure and color that are really attractive, even more so when light enters the center. They are also well placed on the Calcite.
Elmwood Mine, Carthage, Smith County, Tennessee  USA (±1993)

Specimen size: 4.9 × 4.6 × 3 cm

Main crystal size: 1.7 × 1.2 cm

Minor fluorescence long & short UV

Former Jan Buma collection. Number 930702


 
Fluorite with Calcite

FC66F7: A group of Calcite scalenohedra that cover a Fluorite, which is still visible given its deep blue-violet color. The honey color makes one want to eat them. They are real candy.
Elmwood Mine, Carthage, Smith County, Tennessee  USA

Specimen size: 11 × 7.5 × 7 cm

Calcite fluorescent long & short UV

Former Jan Buma collection. Number 200407


Fluorite with Calcite. Front
Front
Fluorite with Calcite. Rear
Rear
Fluorite with Calcite.
 
Fluorite with Barite
Fluorite with Barite. Front
Front
Fluorite with Barite. Side
Side

FT96H0: The piece shows a curious structure of crystals that form a comb, with a superficial slight color giving it a special sensation of relief. As usually happens with a lot of samples from Jan Buma’s collection, the locality is very unusual.
Danville, Boyle County, Kentucky  USA

Specimen size: 8 × 6.8 × 5.9 cm

Main crystal size: 1.2 × 1 cm

Intense fluorescence long & short UV

Former Jan Buma collection. Number 041201


 
Fluorite with Quartz

FT16F7: Crystals of fluorite surround it right to the top. Maybe they were trying to purify themselves as they have a phantom within them. But that would not have been easy as the road was full of spines.... of Quartz, of course. Such thoughts aside, the Fluorite has an excellent color and is from a classic locality, which is famous for its exceptional Rhodochrosite.
Sweet Home mine, Alma, Colorado  USA (±2001)

Specimen size: 5.4 × 4 × 3.6 cm

Main crystal size: 0.3 × 0.3 cm

Minor fluorescence long & short UV

Former Jan Buma collection. Number 011022


Fluorite with Quartz. Front
Front
Fluorite with Quartz. Side
Side
 
Smoky Quartz with Microcline (Amazonite) and Fluorite
Smoky Quartz with Microcline (Amazonite) and Fluorite.
Smoky Quartz with Microcline (Amazonite) and Fluorite.

FK86H0: The little crystal of Fluorite is the item on the piece. A typical sample from Pikes Peak, with Smoky Quartz and Microcline (Amazonite) embellished by this little cube of colorless Fluorite with little purple spots.
Take five Claim, Pikes Peak, Teller County, Colorado  USA (±2003)

Specimen size: 4.9 × 4.4 × 2.9 cm

Main crystal size: 0.7 × 0.5 cm

Former Jan Buma collection. Number 030508

Fluorite and Microcline fluorescent long & short UV


 
Fluorite

FE36G0: The quality is superior to most Fluorites from this locality. A very simple but well-defined crystal stands up in an aerial way on a pegmatitic matrix, formed by a group of little crystals of smoky Quartz and Feldspar.
Crystal Peak area, Teller County, Colorado  USA

Specimen size: 4.8 × 4.5 × 2.8 cm

Main crystal size: 2.5 × 2.5 cm

Former Jan Buma collection. Number 981101


Fluorite.
 
Fluorite on Quartz
Fluorite on Quartz.

FJ6H0: The contrast between the Quartz and the purple Fluorite is especially beautiful. The small bright crystals of Quartz embrace Fluorite octahedrons of rounded edges and parallel growths. The locality is very unusual.
Climax Open Pit Mine, Leadville, Colorado  USA

Specimen size: 4.1 × 3.1 × 2.2 cm

Main crystal size: 0.9 × 0.9 cm

Former Jan Buma collection. Number 020856


 
Fluorite with Rhodochrosite, Chalcopyrite and Quartz
Fluorite with Rhodochrosite, Chalcopyrite and Quartz

FL50H8: Excellent and not so common crystallization with stepped formation produced by the repetition of the forms of the cube all along of the edges and also on the faces of the octahedron. There is also a “phantom” growth with a more opaque central zone. The crystals are on a matrix of Rhodochrosite, Quartz and small crystals of Chalcopyrite.
The sample is with the label of the collection of Fluorites of Herb Obodda.
American Tunnel Mine, Howardsville, San Juan County, Colorado  USA

Specimen size: 6.6 × 4.9 × 5.1 cm

Main crystal size: 3.5 × 3.2 cm

Fluorescent long & short UV

Former Jan Buma collection. Number 010427


Fluorite with Rhodochrosite, Chalcopyrite and Quartz. Front
Front
Fluorite with Rhodochrosite, Chalcopyrite and Quartz. Top
Top
 


Mexico - Canada

Fluorite with Pyrrhotite and Quartz
Fluorite with Pyrrhotite and Quartz. Fluorite with Pyrrhotite and Quartz.

FA14H8: Crystals are octahedrons, and have stepped growths due to the presence of small faces of the cube, both on the edges and the faces. The matrix, on which there are also small crystals of Quartz, is formed for a group of hexagonal crystals of Pyrrhotite, well defined, neat, bright and free of alteration.
Santa Eulalia, Chihuahua  Mexico (±1996)

Specimen size: 6.5 × 4.9 × 4.5 cm

Main crystal size: 0.8 × 0.7 cm

Former Jan Buma collection. Number 960805


 
Fluorite with Galena, Arsenopyrite and Calcite

FD29H0: A bright piece, the Galena, Arsenopyrite, and the Fluorite as well, the Fluorite is gemmy and slightly green colored. I like its perfection, I like its different minerals and I like its composition.
Naica, Saucillo, Chihuahua  Mexico (±1980)

Specimen size: 7.7 × 5.5 × 4.1 cm

Main crystal size: 3.5 × 2.9 cm

Former Jan Buma collection. Number 020801


Fluorite with Galena, Arsenopyrite and Calcite. Fluorite with Galena, Arsenopyrite and Calcite.
 
Fluorite with Calcite and Jamesonite inclusions
Fluorite with Calcite and Jamesonite inclusions. Front
Front
Fluorite with Calcite and Jamesonite inclusions. Top
Top

FE86F7: In this case I like the form of the Fluorite, it looks like a stepped tower, and also the crown of white Calcite near the top of it. I also like the fact that within it you can also see needlelike crystals of Jamesonite. A very good specimen for the locality.
Mina San Martín, Sombrerete, Zatatecas  Mexico (±2004)

Specimen size: 5.3 × 4.3 × 4.4 cm

Main crystal size: 2 × 2 cm

Calcite extremely fluorescent long & short UV

Former Jan Buma collection. Number 040713


 
Fluorite

FL56F7: Cuboctahedral crystals with stepped scalenohedral growth and zones of green-violet. A candy.
Rock Candy Mine, Grand Forks, British Columbia  Canada

Specimen size: 5 × 3.9 × 2.8 cm

Minor fluorescence long & short UV

Former Jan Buma collection. Number 031001


Fluorite.
 
Silver with Fluorite
Silver with Fluorite. Silver with Fluorite.

FT26H5: A very rare combination of native Silver with Fluorite. Silver grew in arborescent clusters of small crystals having very sharp faces and edges. On them, small purple crystals of Fluorite crystallized.
Bonanza Mine, Northwest Territories  Canada (±1989)

Specimen size: 4.2 × 3.9 × 3.2 cm

Former Jan Buma collection. Number 891206


 


Spain

Calcite with Dolomite and Fluorite

FC16G6: Really Nature has its own caprices! I think this piece is a good example. Dolomite crystals form a "pompon" on the top of a Calcite scalenohedron. Furthermore there are some Fluorite crystals and one of them, as it must be, on the "pompon".
Mina Emilio, El Fito, Loroñe, Asturias  Spain (±1998)

Specimen size: 11 × 6.3 × 7 cm

Former Jan Buma collection. Number 980919


Calcite with Dolomite and Fluorite. Calcite with Dolomite and Fluorite.
 
Fluorite with Quartz
Fluorite with Quartz. Fluorite with Quartz.

FN27H5: A classic from the find of the year 2001 in the well known pocket of El Reguerín 2, in the La Collada district. Crystals are cubes beveled by rhombohedron faces. They are beautiful blue and very transparent. In some zones on the matrix some small crystals of Quartz with small cubes of Fluorite appear.
Geoda del Reguerín 2, la Viesca, La Collada, Asturias  Spain (12/2001)

Specimen size: 9.3 × 7.2 × 4.6 cm

Main crystal size: 1.6 × 1.5 cm

Former Jan Buma collection. Number 021022


 
Fluorite

FN87F5: A Spanish classic. From the Veneros Norte Mine at La Collada, which is now closed, comes this large crystal (a floater) that is recrystallized on the rear and that has the typical bevelled edges of this mine. A deep violet color, but in fact even more interesting as one can feel the depth of it due to the bluer zone in its center.
Filón Josefa-Veneros Norte, La Collada, Asturias  Spain (±1974)

Specimen size: 8.3 × 8 × 6 cm

Former Jan Buma collection. Number 990401


Fluorite.
 


Panasqueira

Fluorite on Siderite
Fluorite on Siderite.
Fluorite on Siderite.

FR76G0: A rarity! Although Fluorite is known from Panasqueira, it rarely forms such well defined and deep colored crystals as in this specimen. The matrix is, furthermore, specially esthetic being rich in little crystals of Siderite.
Minas da Panasqueira, Beira Baixa  Portugal (1998)

Specimen size: 5.2 × 5.1 × 3.4 cm

Main crystal size: 0.6 × 0.6 cm

Fluorescent long & short UV

Former Jan Buma collection. Number 901027


 


Western Europe (excl. Spain and Portugal)

Fluorite

FR14F7: Twinned crystals of Fluorite. With an appearance that is typical for the mine, but with a rather special coloring, more pastel than is usual. A small group of crystals stand out near the top of the specimen.
Blackdene Mine, Weardale, Durham, England  United Kingdom

Specimen size: 5.9 × 5.2 × 3.5 cm

Main crystal size: 1.2 × 1 cm

Extremely fluorescent long & short UV

Former Jan Buma collection. Number 041012


Fluorite.
 
Fluorite with Galena
Fluorite with Galena. Fluorite with Galena.

FP37H8: An English locality classic. Crystals are well preserved. They have the typical interpenetration twin and are transparent, bright, and have deep green color. Some minor Galena is present.
Rogerley Mine, Frosterley, Weardale, Durham, England  United Kingdom (±1994)

Specimen size: 15 × 7.8 × 8.3 cm

Main crystal size: 1.5 × 1.4 cm

Extremely fluorescent long & short UV

Former Jan Buma collection. Number 940209


 
Fluorite with Siderite

FX96H8: A very classic English locality well known since XIX century. Crystals are transparent cubes with a lot of inclusions and they are partially covered by Siderite.
Boltsburn Mine, Rookhope, Weardale, Durham, England  United Kingdom

Specimen size: 9.7 × 6.6 × 3.4 cm

Main crystal size: 2.3 × 2.3 cm

Very fluorescent long & short UV

Former Jan Buma collection. Number 041102


Fluorite with Siderite. Front
Front
Fluorite with Siderite. Top
Top
 
Fluorite
Fluorite. Fluorite.

FJ64H8: The locality is uncommon. Crystals are cubic, transparent and practically uncolored. They are well preserved, which is very unusual on old specimens.
Allenheads Mine (Beaumont Mine), Allendale, Northumberland, England  United Kingdom (±1996)

Specimen size: 8.5 × 8.2 × 2.7 cm

Main crystal size: 1.3 × 1.3 cm

Very fluorescent long & short UV

Former Jan Buma collection. Number 961110


 
Hematite, Fluorite, Dolomite and Quartz

FD58I7: A typical specimen from Egremont, with small Hematite crystals partially covered by clear, practically dipyramidal crystals of Quartz and Dolomite rhombohedra. We note, not so common, the presence of small very transparent and slightly blue cubic crystals of Fluorite.
Beckermet Mine, Egremont, Cumbria, England  United Kingdom

Specimen size: 8.5 × 6.8 × 2.2 cm

Fluorite fluorescent long UV & low fluorescence short UV

Former Jan Buma collection. Number 930822


Hematite, Fluorite, Dolomite and Quartz. Hematite, Fluorite, Dolomite and Quartz.
 
Fluorite with Siderite
Fluorite with Siderite.

FY63K9: Group of cubic crystals with light color zonations, which comes from an obscure mine in the region of Cumbria.
Rampgill Mine, Boundary Cross Vein, Nenthead, Cornwall, England  United Kingdom (±2003)

Specimen size: 6.7 × 4.7 × 2.5 cm

Main crystal size: 1 × 0.9 cm

Intense zoned fluorescence long & short UV

Former Jan Buma collection. Number 030504


 
Quartz after Octahedral Fluorite

FQ46G6: In a first view, as a Quartz, it looks rare. And it is rare, because it has the form of octahedral Fluorite, previously existing and substituted by the Quartz. More curious is to observe that the surface is cryptocrystalline Quartz (Chalcedony) but the core of the octahedron, where Fluorite primarily was, is hollow and consists of little geodes covered by Quartz crystals.
Wheal Mary Ann, Menheniot, Liskeard, Cornwall, England  United Kingdom

Specimen size: 7.5 × 6.4 × 3.3 cm

Main crystal size: 1.5 × 1.5 cm

Former Jan Buma collection. Number 940105


Quartz after Octahedral Fluorite.
Quartz after Octahedral Fluorite.
 
Fluorite with Barite
Fluorite with Barite.

FE48J5: Group of translucent, greenish cubic crystals, of very well defined faces and edges, associated with tabular crystals of Barite. We specially note the locality, not so common.
The specimen is from Jan Buma collection and it previously was in the Herb Obboda collection and we’ll send the two collection cards to the buyer of the sample.
Mine de l'Avellan, level 65, Fréjus, Massif de l'Esterel, Var  France

Specimen size: 7.1 × 7 × 3.3 cm

Main crystal size: 2.2 × 2 cm

Intense fluorescence long & short UV

Former Jan Buma collection. Number 010510


 
Fluorite with Chalcopyrite inclusions

FE63J7: Group of coloredless and transparent cubic crystals that have inclusions of globular groups of Chalcopyrite.
Mine Fontsante, Massif du Tanneron, Var  France (±1999)

Specimen size: 11.4 × 5.2 × 2.6 cm

Main crystal size: 1.1 × 1.1 cm

Fluorescent long & short UV

Former Jan Buma collection. Number 990622


Fluorite with Chalcopyrite inclusions.
Fluorite with Chalcopyrite inclusions.
 
Fluorite on Quartz
Fluorite on Quartz.

FY96F7: A very fine plate from a locality that rarely produces undamaged specimens. The base is white Quartz and on it there are various cubes of beautiful blue Fluorite with delicate phantoms, which have grown with equal gaps between them.
Le Burc, Alban, Tarn  France (±2003)

Specimen size: 6.7 × 5.7 × 3.7 cm

Main crystal size: 1.3 × 1 cm

Intense fluorescence long & short UV

Former Jan Buma collection. Number 030604


 
Octahedral Fluorite with Quartz

FC61J7: Magnificent miniature. The octahedral crystal has an excellent luster, a good degree of transparency and its color is deeper than usual. Furthermore, it is esthetically implanted on a Quartz matrix.
Frunthorn, Valsertal, Graubünden  Switzerland (2000)

Specimen size: 2.4 × 2 × 1.9 cm

Main crystal size: 1.8 × 1.3 cm

Former Jan Buma collection. Number 201022


Octahedral Fluorite with Quartz. Front
Front
Octahedral Fluorite with Quartz. Rear
Rear
 
Fluorite with Dolomite and Sphalerite
Fluorite with Dolomite and Sphalerite.

FH63J5: Group of cubic crystals, very transparent, almost colorless, and free of damage. Fluorite is partially covered by small pink crystals of Dolomite. We especially note the locality, not so common.
The specimen is from Jan Buma collection and we’ll send the collection card to the buyer of the sample.
Corvara Mine, Val Sarentino, Bolzano  Italy

Specimen size: 5.6 × 4.5 × 2.8 cm

Main crystal size: 1.8 × 1.5 cm

Zoned fluorescence long & short UV

Former Jan Buma collection. Number 050101


 
Fluorite with Quartz and Orthoclase

FT47F5: At the top of the specimen there is a very aerial pink Fluorite, which is part of a group of octahedral crystals that sit on the typical matrix for the locality: light pink Orthoclase along with smoky Quartz and Clinochlore. Very unusual and elegant = a typical Jan Buma specimen. It also has a label, numbered 353, from the Herbert P. Obodda collection, which is where he got it.
Baveno, Lago Maggiore, Piemonte  Italy

Specimen size: 4.3 × 3.8 × 2 cm

Main crystal size: 0.8 × 0.7 cm

Fluorescent long & short UV

Former Jan Buma collection. Number 010106


Fluorite with Quartz and Orthoclase.
Fluorite with Quartz and Orthoclase.
 
Fluorite (Ochsenauge)
Fluorite (Ochsenauge).

FY59J7: Another rarity from the Buma collection. Furthermore its locality is rare. We note the “ochsenhauge” (we can translate as ox eye) crystallization in which coincide four octahedral crystals more or less joined in one of the vertices.
Tagebau Nord, Schönbrunn/Vogtland  Germany (07/1996)

Specimen size: 5.8 × 2.9 × 1.9 cm

Main crystal size: 1.1 × 1 cm

Fluorescent long & short UV

Former Jan Buma Collection. Number 011058


 
Fluorite

FG64I7: Very nice miniature from an uncommon locality. Crystals, very aerial, are cubic, blue and translucent and have very well defined faces and edges.
Bösenbrunn, Oelsnitz, Vogtland, Saxony  Germany

Specimen size: 3.7 × 2.7 × 2.4 cm

Main crystal size: 1.5 × 1.1 cm

Fluorite fluorescent long & short UV

Former Jan Buma collection. Number 031019


Fluorite.
 
Fluorite with Barite, Tetrahedrite and Chalcopyrite
Fluorite with Barite, Tetrahedrite and Chalcopyrite. Fluorite with Barite, Tetrahedrite and Chalcopyrite.

FB26I7: The specimen is especially interesting both for the locality and for the clearness and the color. We note also its rich paragenesis with Barite, Chalcopyrite and Tetrahedrite.
Marienberg District, Erzgebirge, Saxony  Germany

Specimen size: 8.9 × 6 × 3.2 cm

Main crystal size: 0.6 × 0.5 cm

Fluorite fluorescent long & short UV

Former Jan Buma collection. Number 050701


 
Fluorite with Quartz

FQ76M0: Excellent specimen from a classic German locality. Group of cuboctahedral crystals, one of them clearly dominant, with a pale apple green color and excellent brilliance. With some small white Quartz crystals.
Gelbe Birke Mine, Schwarzenberg, Erzgebirge, Saxony  Germany

Specimen size: 9.5 × 7.2 × 4.4 cm

Main crystal size: 2.8 × 2.8 cm

Very fluorescent long & short UV

Former Jan Buma collection. Number 011059


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

FX76M0: Group of cubic Fluorite crystals, with well defined and bright faces and edges. Very pale green color and accompanied by Galena crystals. Partially covered by Siderite. A excellent quality specimen for this locality.
Freiberg District, Erzgebirge, Saxony  Germany

Specimen size: 10.7 × 9.5 × 3 cm

Main crystal size: 1.9 × 1.8 cm

Fluorescent long & short UV

Former Jan Buma collection. Number 921207


 
Fluorite with Bertrandite and Feldspar

FX76M2: The locality is uncommon. Fluorite crystals are cubic, transparent and practically uncolored, with a slight violet color zoning. On a feldspar matrix (probably Albite) and with some small but really well defined Bertrandite crystals, typical of the locality.
Dörfel Quarry, Dörfel, Annaberg-Buchholz, Erzgebirge, Saxony  Germany

Specimen size: 8.4 × 7.2 × 6.5 cm

Main crystal size: 1.2 × 1 cm

Fluorescent long & short UV

Former Jan Buma collection. Number 020205


Fluorite with Bertrandite and Feldspar. Fluorite with Bertrandite and Feldspar.
 
Fluorite with Quartz
Fluorite with Quartz. Fluorite with Quartz.

FC61M2: Very uncommon locality not well represented in collections. Group of cubic crystals beveled by the rhombohedron. Color is green and all on matrix.
Ledec, Sazavon  Czech Republic

Specimen size: 10.1 × 10 × 3.5 cm

Main crystal size: 1 × 0.9 cm

Fluorescent long UV & minor fluorescence short UV

Former Jan Buma collection. Number 940507


 
Fluorite with Zinnwaldite and Quartz

FF86H5: Fluorites from Zinnwald are very rare. The locality is one of the great classics in the history of mineralogy. On the sample the cubes of Fluorite form a crowd on the upper part of the matrix that has Quartz crystals and laminar crystals of Zinnwaldite of pseudohexagonal habit and perfectly sharp. We call attention to Zinnwald as a type locality for Zinnwaldite.
The specimen's photo has been reviewed and published in the magazine ‘Rocks & Minerals’ on page 159 in the volume 82, number 2.
Zinnwald, Krusné Hory, Bohemia  Czech Republic

Specimen size: 10.2 × 8.2 × 4.2 cm

Main crystal size: 0.6 × 0.6 cm

Former Jan Buma collection. Number 040105


Fluorite with Zinnwaldite and Quartz. Fluorite with Zinnwaldite and Quartz.
 


FSU

Ferberite with Fluorite and Pyrite
Ferberite with Fluorite and Pyrite.
Ferberite with Fluorite and Pyrite.

FD13G0: These Ferberite crystals form a very curious growth in contrast with the matrix of bright Pyrite cubes covering a wide part of the back of the sample. On the Ferberite little Fluorite crystals can be seen.
Kara-Oba, Betpakdala  Kazakhstan (±1993)

Specimen size: 5.6 × 5 × 1.7 cm

Former Jan Buma collection. Number 930913

Fluorite fluorescent long & short UV


 
Octahedral Fluorite with Pyrite and Sphalerite

FB86F9: The crystal is forming a complex growth in two different phases. In the first one the major octahedron formed and then on the octahedron vertices, smaller Fluorite crystals with dodecahedrons grew. Sphalerite and cubes of Pyrite form a perfect base to the sample. The Fluorite has good color and transparency and the referenced locality has become a classic.
Kara-Oba, Betpakdala  Kazakhstan (±1995)

Specimen size: 3.9 × 3.5 × 2.7 cm

Main crystal size: 2.9 × 2.6 cm

Former Jan Buma collection. Number 950303


Octahedral Fluorite with Pyrite and Sphalerite.
 
Fluorite on Quartz
Fluorite on Quartz.
Fluorite on Quartz.

FK13F7: An almost unheard of locality for Fluorite. On the Quartz there are numerous octahedra of nicely colored, luminous green Fluorite. The Quartz is slightly smoky and has darker growth phantoms within it.
Kent, Karaganda Oblast  Kazakhstan (±2003)

Specimen size: 5.8 × 4.5 × 4.7 cm

Main crystal size: 0.3 × 0.2 cm

Former Jan Buma collection. Number 030409


 
Fluorite with Stibnite

FV76F7: Very special. The fine crystals of Stibnite form the base and between them there is a first generation of lilac stalactitic Fluorite and a second generation of lighter colored cubic crystals.
Kadamehri  Kyrgyzstan (±1999)

Specimen size: 7.5 × 5 × 3 cm

Minor fluorescence long & short UV

Former Jan Buma collection. Number 990616


Fluorite with Stibnite. Front
Front
Fluorite with Stibnite. Rear
Rear
Fluorite with Stibnite.
 
Fluorite with Calcite
Fluorite with Calcite.

FG13H5: Green crystals show combined faces of cube and octahedron, partially covered by rhombohedral crystals of white Calcite. The locality is very uncommon for representative samples of Fluorite.
Bikov, Siberia  Russia (±2002)

Specimen size: 8 × 5 × 3.8 cm

Main crystal size: 4 × 4 cm

Intense fluorescence short UV & fluorescent long UV

Former Jan Buma collection. Number 020872


 
Fluorite with Calcite

FE76H0: The sample has a deep green color. Its crystallography is complex, combining the faces of the cube and octahedron with a silky aspect. The front face is spotted by little crystals of Calcite, bigger on the matrix, and giving a pleasant contrast to the piece.
First Sovietsky Mine, Dalnjegorsk, Primorskij Kraj  Russia (±2005)

Specimen size: 6.3 × 5.4 × 4.1 cm

Main crystal size: 5.4 × 5.2 cm

Minor fluorescence long & short UV

Former Jan Buma collection. Number 050304


Fluorite with Calcite.
 


Morocco

Fluorite on Dolomite
Fluorite on Dolomite.
Fluorite on Dolomite.

FA58F7: A very elegant example and different from the ones we normally see from Aouli. On a bed of small crystals of Dolomite there is a group of very well defined crystals of yellow Fluorite, which have contrasting zones of violet. An exceptional specimen for the locality, as Herb Obodda must have known - it was in his collection with label number 459, we will send to a buyer a copy of our analysis of the specimen.
Aouli, Mibladen, Midelt  Morocco

Specimen size: 11 × 8.3 × 5.3 cm

Main crystal size: 1.5 × 1.5 cm

Intense fluorescence long & short UV

Former Jan Buma collection. Number 010102


 


Africa

Fluorite

FG63F5: The thing that attracted me to this floater is the strange (and unusual for this locality) color zoning that is between orange and violet, as well as the uneven thickness of the crystals, which makes them look tabular.
Okaruso Mine, Otjiwarongo District  Namibia (±1997)

Specimen size: 5.5 × 4.5 × 2.5 cm

Main crystal size: 1.9 × 1.5 cm

Minor fluorescence long & short UV

Former Jan Buma collection. Number 970904


Fluorite.
 


South America

Fluorite with Quartz
Fluorite with Quartz.
Fluorite with Quartz.

FG9K4: Sharp, yellow cubic crystals of perfectly defined faces and edges on a matrix of microcrystalline Quartz. The locality is very uncommon.
El Portezuelo, Sierra de Ascasti, Catamarca  Argentina (±2003)

Specimen size: 4.8 × 2.7 × 2.3 cm

Main crystal size: 1.3 × 1.3 cm

Fluorescent long & short UV

Former Jan Buma collection. Number 030207


 
Fluorite with smoky Quartz, Orthoclase and Hematite

FH64H5: Surprising is the uncommon paragenesis on the sample with cubic crystals of Fluorite coexisting with a matrix of Smoky Quartz, prisms of Orthoclase and small crystals of Hematite. We also call attention on the locality where Fluorite is not common.
Formación Papachacra, Departamento Belén, Catamarca  Argentina (±2004)

Specimen size: 5 × 4.8 × 3.5 cm

Main crystal size: 1.9 × 1.8 cm

Fluorescence short UV & low fluorescence long UV

Former Jan Buma collection. Number 040509


Fluorite with smoky Quartz, Orthoclase and Hematite.
 
Fluorite with Orthoclase and Quartz
Fluorite with Orthoclase and Quartz. Fluorite with Orthoclase and Quartz.

FB61H8: The locality is not so common. Crystals are octahedral and have well defined faces and edges and a curious and irregular distribution of their color, practically uncolored in some zones, and they have spots of an intense violet color in some other. On the matrix there are twinned crystals of Orthoclase and small crystals of smoky Quartz.
Formación Papachacra, Departamento Belén, Catamarca  Argentina (±2004)

Specimen size: 7.9 × 6.8 × 6.5 cm

Main crystal size: 0.8 × 0.7 cm

Fluorescent long & short UV

Former Jan Buma collection. Number 040904


 
Rhodochrosite with Fluorite

FF67K0: Very uncommon association of Rhodochrosite and Fluorite crystals. The Rhodochrosite forms multiple crystals while the Fluorite crystals are rounded and poorly defined with rough surfaces due to complex crystallization.
Mina Uchucchacua, Oyon, Departamento de Lima  Peru (±2002)

Specimen size: 6.3 × 4.8 × 2.4 cm

Main crystal size: 1.3 × 1 cm

Former Jan Buma collection. Number 020638


Rhodochrosite with Fluorite. Rhodochrosite with Fluorite.
 
Octahedral Fluorite with Pyrite
Octahedral Fluorite with Pyrite.

FC76F5: Apart from the fact that it is octahedral, the pink color is great throughout all of it except for the green heart. A small amount of matrix and Pyrite adds to it.
Mina Huanzala, Huallanca, Dos de Mayo, Huánuco  Peru

Specimen size: 3.3 × 3 × 3.2 cm

Fluorescent long & short UV

Former Jan Buma collection. Number 010625


 
Hübnerite with Fluorite

FZ46I7: Parallel growth of very bright prismatic crystals on a matrix of white crystals of Quartz. On some of the Hübnerite crystals there are small crystals of Fluorite, blue, transparent and very rich in faces. The sample is with two labels, one from Hamel Mining and Minerals, Los Angeles, and the other from the Scott J. Williams collection.
Mina Huallapón, Pasto Bueno, Pallasca, Ancash  Peru

Specimen size: 7 × 5 × 3.3 cm

Main crystal size: 3.5 × 1 cm

Fluorite extremely fluorescent long & short UV

Former Jan Buma collection. Number 050113


Hübnerite with Fluorite. Hübnerite with Fluorite.
 
Fluorite with Brazilianite and Albite
Fluorite with Brazilianite and Albite. Fluorite with Brazilianite and Albite.

FD76K9: Another of the unusual parageneses to which we are accustomed from the collection of Jan Buma. Beveled cubic crystals on Brazilianite and elongated crystals of white Albite.
Linopolis, Divino das Laranjeiras, Minas Gerais  Brazil

Specimen size: 7.7 × 5.8 × 3.6 cm

Main crystal size: 0.9 × 0.8 cm

Fluorescence short UV & low fluorescence long UV

Former Jan Buma collection. Number 050503


 


China

Fluorite with Quartz

FK64M0: Fluorite octahedral crystals, one of them dominant, with an intense and vivid color, with small darker crystals with Quartz. On matrix.
Xianghuapu Mine, Linwu, Chenzhou, Hunan  China (±2003)

Specimen size: 6.6 × 5.3 × 4.7 cm

Main crystal size: 3.3 × 3 cm

Former Jan Buma collection. Number 031015


Fluorite with Quartz. Front
Front