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Group of rhombohedral crystals of Calcite whose faces and edges are slightly curved. Color is snowy white and contrasts with the matrix of black Sphalerite that forms bright crystals of very well defined faces and edges.
Herja Mine, Chiuzbaia, Baia Sprie, Maramures Romania (2003)
Specimen size: 10.5 × 8.5 × 5.6 cm = 4.13” × 3.35” × 2.20”

JFD181AP1: Calcite with Sphalerite and Dolomite

Found around 1970, this specimen is a good example of the quality of calcites from this classic mine. Although calcites with larger crystals were found there, this piece is very fine, with a matrix of Sphalerite covered by multiple well developed Calcite crystals of good transparency.
Trèves Mine, Fournels Valley, Trèves, Gard, Occitanie France (±1970)
Specimen size: 8.8 × 7.2 × 4.5 cm = 3.46” × 2.83” × 1.77”

Main crystal size: 1 × 1 cm = 0.39” × 0.39”

SM260FG: Calcite with Sphalerite and Fluorite

Clear, very bright, scalenohedron crystal of Calcite, with an intense yellow color, on a matrix of Sphalerite with transparent, bright and very deep mauve Fluorite crystals.
Former collection of Jan Buma. Number 070501
Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee USA
Specimen size: 11.5 × 11.3 × 5.7 cm cm = 4.53” × 4.45” × 2.24”

SM56AD6: Calcite with Sphalerite and Pyrite

Very sharp acute scalenohedral Calcite crystals, translucent white, on a Sphalerite matrix with Pyrite microcrystals. The locality is not well known, as is usual with a lot of samples from this collection.
Trèves Mine, Fournels Valley, Trèves, Gard, Occitanie France
Specimen size: 9.7 × 7.9 × 3.2 cm = 3.82” × 3.11” × 1.26”

Main crystal size: 1.7 × 0.9 cm = 0.67” × 0.35”

EV16F2: Calcite with Sphalerite and Quartz

Three lenticular Calcite crystals, with perfect form, the three upper faces of the rhombohedra very visible, and the prisms hardly developed at all. A very beautiful gem crystal of Sphalerite accompanies them, all on a matrix of Quartz.
Kangjianwan Mine, Shuikoushan ore field, Changning, Hengyang Prefecture, Hunan Province China (2004)
Specimen size: 4 × 3.8 × 4 cm = 1.57” × 1.50” × 1.57”

CQ27AD2: Calcite with Sphalerite, Fluorite and Quartz

Rhombohedral Calcite crystal with fine polycrystalline growths on its faces. It has a white color and is implanted on a matrix of colorless Fluorite crystals, twinned Sphalerite crystals and aggregates of small Quartz crystals. A Mexican classic.
Naica, Municipio Saucillo, Chihuahua Mexico
Specimen size: 8 × 7 × 5.7 cm = 3.15” × 2.76” × 2.24”

Main crystal size: 2.6 × 2.4 cm = 1.02” × 0.94”

NB36G4: Calcite with Sphalerite, Quartz and Pyrite

Beautiful (and curious) growths of elongated globular aspect and pearly luster, esthetically and aerially developed on a matrix of Sphalerite with Quartz.
Boldut Mine, Cavnic mining area, Cavnic, Maramures Romania (05/2004)
Specimen size: 5.8 × 5.8 × 2.7 cm = 2.28” × 2.28” × 1.06”

TQ26N9: Calcite with Stibnite

Crystal of Calcite, complex and rich in faces, of excellent yellow color, very transparent and bright, on a base of Stibnite crystals with very well defined edges and terminations.
Hechi Prefecture, Guangxi Zhuang Autonomous Region China (1999)
Specimen size: 3.9 × 2.8 × 2.2 cm = 1.54” × 1.10” × 0.87”

Main crystal size: 1.8 × 1.6 cm = 0.71” × 0.63”

EH6P5: Calcite with Stibnite

A thin crystal of Stibnite with a good termination, on a transparent discoidal twinned crystal of Calcite, all on a small matrix.
Xikuangshan Sb deposit, Lengshuijiang, Loudi Prefecture, Hunan Province China (2009)
Specimen size: 4.9 × 3.1 × 1.4 cm = 1.93” × 1.22” × 0.55”

EA96T6: Calcite with Stibnite

Transparent lenticular crystal with a yellow color and a very neat phantom growth corresponding to a first very flattened rhombohedron. It is on matrix, with small acicular crystals of Stibnite on the contact zone between the cristal and the matrix.
Xikuangshan Sb deposit, Lengshuijiang, Loudi Prefecture, Hunan Province China (2009)
Specimen size: 6.2 × 3.1 × 3.9 cm = 2.44” × 1.22” × 1.54”

Main crystal size: 3.2 × 2.8 cm = 1.26” × 1.10”

EB27P8: Calcite with Stibnite

Lenticular crystal formed by an extremely flattened rhombohedron and a thin prism. It has very well defined faces and edges, is bright and translucent, of yellow color, and is on matrix. It has, as an inclusion, a Stibnite crystal at the bottom of the Calcite crystal.
Xikuangshan Sb deposit, Lengshuijiang, Loudi Prefecture, Hunan Province China (2009)
Specimen size: 6.5 × 5.3 × 3.9 cm = 2.56” × 2.09” × 1.54”

AJ66N4: Calcite with Stilbite

Crystals very rich in faces but with dominating forms of the prism and the terminal rhombohedron. They are absolutely clear and extraordinarily bright and are esthetically situated on a matrix of yellowish crystals of Stilbite.
Sokolovskoe Mine (Sokolovskiy Mine), Rudny, Kostanay Region Kazakhstan
Specimen size: 7.8 × 7.4 × 3.1 cm = 3.07” × 2.91” × 1.22”

Main crystal size: 2.4 × 1.6 cm = 0.94” × 0.63”

JA37T3: Calcite with Stilbite and Fluorapophyllite-(K)

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 = 5.83” × 4.02” × 2.05”

TA36F6: Calcite with Stilbite and Quartz

The main, rhombohedral, very luminous, crystal has a notable penetration twin. It has strategically positioned itself next to pink Stilbite and on a matrix on Quartz Chalcedony.
Pune District (Poonah District), Maharashtra India
Specimen size: 6.6 × 6 × 6 cm = 2.60” × 2.36” × 2.36”

Main crystal size: 3.4 × 3.2 cm = 1.34” × 1.26”

BRR89AP3: Calcite with Sulphur

Scalenohedral crystal of Calcite covered by a second generation of botryoidal Calcite crystals and Sulphur crystals with sharp crystal forms. Different.
Agrigento (Girgenti) Province, Sicily Italy
Specimen size: 16.8 ×10.2 × 6.6 cm = 6.61” × 4.02” × 2.60”

2N61: Calcite, Dolomite

Complex Calcite crystals, one of them clearly dominant, very rich in faces, among which the forms of a sharp rhombohedron and a flattened scalenohedron stand out, which gives them an equidimensional and rounded habit. The colorless, transparent and very shiny crystals are in a matrix of smaller Calcite crystals with an acute scalenohedral shape.
La Florida mining area, Herrería-Valdáliga-Rionansa, Comarca Costa Occidental/Saja-Nansa, Cantabria Spain (2000)
Specimen size: 9.3 × 4.4 × 6.5 cm = 3.66” × 1.73” × 2.56”

Main crystal size: 2.7 × 2.7 × 2.5 cm = 1.06” × 1.06” × 0.98”

2N17: Calcite, Dolomite

Complex crystal, very rich in faces, in which those of a sharp rhombohedron and a flattened scalenohedron stand out, which gives the whole an equidimensional and rounded habit. Above all, the uniform yellow color, the transparency, the luster and the elegant position of the crystal in the pink Dolomite matrix stand out.
La Florida mining area, Herrería-Valdáliga-Rionansa, Comarca Costa Occidental/Saja-Nansa, Cantabria Spain
Specimen size: 4.5 × 3.5 × 2.5 cm = 1.77” × 1.38” × 0.98”

2N13: Calcite, Dolomite

Complex crystal, very rich in faces, among which a sharp rhombohedron and a flattened scalenohedron stand out, which gives it an overall equidimensional and rounded habit. Above all, the uniform yellow color, the transparency, the luster and the elegant position of the crystal in the pink Dolomite matrix stand out.
La Florida mining area, Herrería-Valdáliga-Rionansa, Comarca Costa Occidental/Saja-Nansa, Cantabria Spain
Specimen size: 6.0 × 5.3 × 5.0 cm = 2.36” × 2.09” × 1.97”

Main crystal size: 1.5 × 1.5 × 1.3 cm = 0.59” × 0.59” × 0.51”

2N63: Calcite, Dolomite

Doubly terminated scalenohedral Calcite crystal, twinned, transparent, bright, with a light yellow color, with inclusions, implanted on a matrix with pink Dolomite crystals.
La Florida mining area, Herrería-Valdáliga-Rionansa, Comarca Costa Occidental/Saja-Nansa, Cantabria Spain
Specimen size: 4.2 × 4.0 × 2.6 cm = 1.65” × 1.57” × 1.02”

2N56: Calcite, Dolomite

Complex crystal, very rich in faces, in which those of a sharp rhombohedron and a flattened scalenohedron stand out, which gives the whole an equidimensional and rounded habit. Above all, the uniform yellow color, the transparency, the luster and the elegant position of the crystal in the pink Dolomite matrix stand out.
La Florida mining area, Herrería-Valdáliga-Rionansa, Comarca Costa Occidental/Saja-Nansa, Cantabria Spain
Specimen size: 7.5 × 5.9 × 4.5 cm = 2.95” × 2.32” × 1.77”

Main crystal size: 2.3 × 1.8 × 1.8 cm = 0.91” × 0.71” × 0.71”

2N77: Calcite, Dolomite

Complex Calcite crystals, rounded, with the dominant forms of a scalenohedron and a flattened rhombohedron, transparent, bright, with a yellow color, on a rocky matrix, with pink Dolomite.
La Florida mining area, Herrería-Valdáliga-Rionansa, Comarca Costa Occidental/Saja-Nansa, Cantabria Spain (2006)
Specimen size: 5.3 × 7.7 × 5.0 cm = 2.09” × 3.03” × 1.97”

2E12: Calcite, Dolomite, Chalcopyrite

Doubly terminated scalenohedral Calcite crystal with very well defined polycrystalline growths. It is translucent, very bright, with an intense yellow color, with Dolomite and Chalcopyrite on matrix.
Sweetwater Mine, Ellington, Viburnum Trend District, Reynolds County, Missouri USA
Specimen size: 6.1 × 2.2 × 4.0 cm = 2.40” × 0.87” × 1.57”

17TRX96: Calcite, Dolomite, Sphalerite, Pyrite

Group of Calcite crystals, one of them clearly dominant and very aerial, white in color and outlined with slight twists. The crystals of Calcite grew on a matrix of Pyrite and Sphalerite, and on cream-colored rhombohedral Dolomite crystals, clearly differentiating the area of sulfides from that of carbonates, the latter having precipitated later. A very 'geological' specimen.
Boldut Mine, Cavnic mining area, Cavnic, Maramures Romania
Specimen size: 6.8 × 5.3 × 5.6 cm = 2.68” × 2.09” × 2.20”

MB96AA9: Calcite-Dolomite with Pyrite and Muscovite

Polycrystalline growths with a lenticular shape that are coating a very sharp rhombohedral phantom crystal. It is with small Pyrite crystals and a Muscovite matrix. The crystal is complete (recrystallized) and the polycrystalline growths decorate only four of the six crystal faces.
Minas da Panasqueira, level 0, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Portugal (10/2014)
Specimen size: 5.3 × 4.9 × 3 cm = 2.09” × 1.93” × 1.18”

MFB86AO4: Caledonite

Coatings of translucent acicular Caledonite crystals, with great luster and an intense blue color. Of the best quality for the species. The specimen has been analyzed and we will send a copy of the analysis to the buyer.
Victoria Segunda Mine, Cerros Pintados, Salar de Pintados, Tamarugal Province, Tarapacá Region Chile
Specimen size: 7 × 4.2 × 2.1 cm = 2.76” × 1.65” × 0.83”

12722 results found.

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