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  • Sepiolite
    PDM1087065
    Eskişehir Province, Turkey
    Size: 
    5.7 × 5 × 4.2 cm
    Miniature (4.5-7 cm)
    Description: 
    Characteristic snow white, very light porous microcrystalline sepiolite specimen, known as "sea foam" (meerschaum), that was traditionally...

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  • Amber
    PDM1087021
    Primorskoe Amber Deposit, Yantarny, Kaliningrad Oblast, Russian Federation
    Size: 
    3.5 × 2.7 × 2.1 cm
    Small miniature (3-4.5 cm)
    Description: 
    Old piece of amber from Primorskoe (Palmnicken), a classic European locality. It has a natural hole and one side is curved and partially...

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  • Anorthite Var Labradorite
    PDM1087052
    Ihosy, Madagascar
    Size: 
    7.3 × 6.6 × 2.6 cm
    Small cabinet (7-10 cm)
    Description: 
    Cluster of anorthite crystals of the labradorite variety, with interpenetrated crystals of nice blue and yellow coloured reflexes. Raw...

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  • Stichtite
    PDM1087079
    Bou Azzer Mine, Amerzgane, Ouarzazate Province, Drâa-Tafilalet Region, Morocco
    Size: 
    10 × 8 × 4.4 cm
    Cabinet (10-18 cm)
    Description: 
    Pink foliated masses of stichtite, filling up fractures in a strongly metamorphosed green-black serpentinite rock. Nice big and less common...

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  • Scorodite
    PDM1087064
    Hemerdon Bal Open Working, Plympton, Devon, United Kingdom
    Size: 
    4.4 × 3.8 × 3.2 cm
    Small miniature (3-4.5 cm)
    Description: 
    Green scorodite crystals richly filling a cavity of a weathered matrix. Representative specimen of this British locality. Acquired in 14/04...

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  • Microcline
    PDM1087057
    Papachacra Mountains, Papachacra, Belén Department, Catamarca Province, Argentina
    Size: 
    9.3 × 7 × 3.9 cm
    Small cabinet (7-10 cm)
    Description: 
    Cluster of euhedral pink microcline crystals, some nicely overgrown by a secondary microcline phase, with some smoky quartz crystals at the...

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  • Gypsum
    PDM1087050
    Le Monestier-du-Percy, Isère, Auvergne-Rhône-Alpes, France
    Size: 
    5.2 × 2.7 × 1.6 cm
    Miniature (4.5-7 cm)
    Description: 
    Floater, euhedral, textbook crystal of gypsum of good transparency with a nice hourglass zoning, very evident under long ultraviolet light...

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  • Celestine
    PDM1087028
    Grenoble, Isère, Auvergne-Rhône-Alpes, France
    Size: 
    5.8 × 3.4 × 1.5 cm
    Miniature (4.5-7 cm)
    Description: 
    Gemmy lustrous crystals of celestine of blue colour, on a flat matrix. Uncommon piece from near Grenoble, that was acquired in July/1982 in...

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  • Cookeite
    PDM1087045
    Goutasson, Couledoux, Haute-Garonne, Occitanie, France
    Size: 
    6.7 × 5.5 × 2.7 cm
    Miniature (4.5-7 cm)
    Description: 
    White cookeite of pearly lustre, from Goutasson, a locality rarely available in collections. The laminar crystals are associated as...

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  • Silver With Proustite
    PDM1087077
    Hartenstein, Zwickau, Saxony, Germany
    Size: 
    7.8 × 5.6 × 1.9 cm
    Small cabinet (7-10 cm)
    Description: 
    Silver-grey highly lustrous crystallized silver, forming dendritic feather like crystals, imbedded in a dull black matrix of native arsenic...

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  • Gedrite
    PDM1087049
    Skisshyttan, Smedjebacken, Dalarna County, Sweden
    Size: 
    9.3 × 5.3 × 4.2 cm
    Small cabinet (7-10 cm)
    Description: 
    Black fibrous crystals of gedrite associated in divergent radial aggregates, in a typical pink metavulcanite rock matrix. Very good...

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  • Titanite
    PDM1087098
    Mont Blanc Massif, Chamonix, Haute-Savoie, Auvergne-Rhône-Alpes, France
    Size: 
    7.7 × 5.4 × 4 cm
    Small cabinet (7-10 cm)
    Description: 
    Sharp crystals of titanite interpenetrated with white adularia crystals that are coloured green at the surfaces because they are covered by...

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  • Almandine
    PDM1087020
    Ötz Valley, North Tyrol, Tyrol, Austria
    Size: 
    6 × 5.9 × 5.8 cm
    Miniature (4.5-7 cm)
    Description: 
    A large euhedral crystal of almandine, measuring 6 cm, of typical rhombic dodecahedral form, deep red-brown colour and in perfect condition...

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  • Eudialyte Var Eucolite
    PDM1087047
    Langesundsfjorden, Larvik, Vestfold og Telemark, Norway
    Size: 
    1.8 × 1.3 × 0.5 cm
    Thumbnail (1-3cm)
    Description: 
    Aggregate of brown eudialite, variety eucolite, of vitreous lustre, from a classic locality. Acquired in 23/02/2003. Ex Gustaaf collection...

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  • Calcite
    PDM1087024
    Gruta do Cristais, Matozinhos, Minas Gerais, Brazil
    Size: 
    6.2 × 3.6 × 2.2 cm
    Miniature (4.5-7 cm)
    Description: 
    Beautiful translucent crystals of calcite that are arranged in an arborescent growth. The crystals grew increasing size and transparency to...

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  • Malachite & Heterogenite
    PDM1087054
    Shinkolobwe Mine, Shinkolobwe, Kambove, Haut-Katanga, DR Congo
    Size: 
    5.5 × 4.7 × 2.1 cm
    Miniature (4.5-7 cm)
    Description: 
    Well-developed primary malachite crystals with very good lustre richly covering a botryoidal crust of banded fibrous malachite crystals,...

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  • Cristobalite In Obsidian
    PDM1087046
    Black Rock Desert, Millard County, Utah, United States of America
    Size: 
    5.5 × 4.6 × 3 cm
    Miniature (4.5-7 cm)
    Description: 
    A piece of obsidian, a vitreous volcanic glass rock that forms when molten lava erupts on to the surface of the Earth and cools quickly...

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  • Aragonite & Calcite
    PDM1087022
    Gergovie, La-Roche-Blanche, Veyre-Monton, Puy-de-Dôme, Auvergne-Rhône-Alpes, France
    Size: 
    9.8 × 5.8 × 3.8 cm
    Small cabinet (7-10 cm)
    Description: 
    Radial aggregates of translucent acicular crystals of aragonite on a vacuolic volcanic matrix, associated to rounded white aggregates of...

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  • Cavansite On Stilbite-Ca
    PDM1087026
    Wagholi Quarry, Pune, Maharashtra, India
    Size: 
    7.5 × 6.4 × 4.6 cm
    Small cabinet (7-10 cm)
    Description: 
    Bright blue radial cavansite rosettes aesthetically placed on a volcanic rock, richly spotted by transparent stilbite blades. No damages...

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  • Magadiite
    PDM1087053
    Kanem Region, Chad
    Size: 
    1.2 × 0.9 × 0.6 cm
    Thumbnail (1-3cm)
    Description: 
    Magadiite is a rare sodium-silicate and this specimen is a creamy-white earthy crust with nice desiccation cracks. Acquired in 23/02/2003...

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  • Prehnite On Epidote
    PDM1087059
    Diakon Commune, Cercle de Bafoulabé, Kayes Region, Mali
    Size: 
    8.5 × 6.9 × 4.7 cm
    Small cabinet (7-10 cm)
    Description: 
    Cluster of apple green spheroidal clusters of prehnite crystals on a group of thick euhedral, dark green epidote crystals, with moderate...

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  • Andradite Var Melanite
    PDM1087056
    Sokolovskoe Mine, Rudniy, Kostanay Region, Kazakhstan
    Size: 
    7.9 × 6.2 × 3.6 cm
    Small cabinet (7-10 cm)
    Description: 
    Dozens of bright black andradite crystals of the melanite variety from the Sokolovskoe mine. Very good representative specimen of locality...

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  • Cerussite On Galena & Baryte
    PDM1087031
    Mibladen, Midelt Province, Drâa-Tafilalet Region, Morocco
    Size: 
    7.5 × 7.4 × 4.1 cm
    Small cabinet (7-10 cm)
    Description: 
    Bright lustrous crystals of cerussite of a light yellow olive oil colour with a strong yellow fluorescence, believed to be due to the...

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  • Pyrope
    PDM1087062
    Thailand
    Size: 
    1.2 × 1 × 0.9 cm
    Thumbnail (1-3cm)
    Description: 
    20+ crystals of pyrope of intense wine-red colour, some broken but mostly complete and with trapezohedral habit, with the edges rounded by...

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  • Agate Var Eye Agate
    PDM1087019
    Maharashtra, India
    Size: 
    6.5 × 4.3 × 4.3 cm
    Miniature (4.5-7 cm)
    Description: 
    Agate with concentric pattern, cut as an elongated cabochon, looking like an eye. Gorgeous cut and damage free piece. Acquired in 24/06/...

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Page 1 of 25 results