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  • Corkite
    MTR610704
    Dernbach, Rhineland-Palatinate, Germany
    Size: 
    3.5 × 4.7 × 3.2 cm
    Miniature (4.5-7 cm)
    Description: 
    Well defined rhombohedral crystals of corkite on matrix. Rich specimen from a classic German locality!
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  • Sklodowskite
    MTR659378
    Paleokamariza mine, Attiki Prefecture, Greece
    Size: 
    1 × 1.6 × 1 cm
    Thumbnail (1-3cm)
    Description: 
    Yellow crystals of rare sklodowskite on gypsum matrix from a new find.
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  • Mendozavilite-NaFe
    MTR659338
    Rustler Mine, Tooele County, Utah, United States of America
    Size: 
    1.7 × 1.3 × 0.6 cm
    Thumbnail (1-3cm)
    Description: 
    Lots of small yellow crystal clusters of rare mendozavilite-NaFe on matrix. Only known from few localities. Named in honor of Heriberto...
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  • Hannebachite
    MTR643285
    Eifel Mountains, Rhineland-Palatinate, Germany
    Size: 
    1.2 × 1.7 × 2 cm
    Thumbnail (1-3cm)
    Description: 
    Excellent tabular bladed colorless crystals of rare hannebachite on matrix from the type locality for the mineral. H32
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  • Latrappite
    MTR659379
    Oka, Oka Complex, Québec, Canada
    Size: 
    1.8 × 1.7 × 1.1 cm
    Thumbnail (1-3cm)
    Description: 
    Sharp euhedral crystals of rare latrappite on matrix from the type locality for the species. The mineral is only known from Oka, Canada.
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  • Orpiment
    MTR659383
    Elbrusskiy Mine, Northern Caucasus, Russian Federation
    Size: 
    3.6 × 6.2 × 2.8 cm
    Miniature (4.5-7 cm)
    Description: 
    Beautiful crystal tufts of orpiment on matrix from a rarely seen Russian locality.
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  • Paulingite-Ca
    MTR654854
    Vinarice, Kladno, Bohemia, Czech Republic
    Size: 
    1.5 × 2 × 0.9 cm
    Thumbnail (1-3cm)
    Description: 
    Beautiful sharp crystals of rare paulingite-Ca inside small cavities. Only known from two localities in the world. Named after Linus Carl...
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  • Metathénardite
    MTR643275
    Tolbachik Volcano, Kamchatka Oblast, Far Eastern Region, Russian Federation
    Size: 
    1.4 × 1.2 × 0.7 cm
    Thumbnail (1-3cm)
    Description: 
    Plenty of pale blue to white hexagonal crystals and aggregates of the new species metathenardite IMA2015-102 on matrix. Analyzed by Prof. I...
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  • Hydroxylgugiaite
    MTR638125
    Saga 1 Quarry, Porsgrunn, Telemark, Norway
    Micromount (under 1cm)
    Description: 
    Analyzed author's material of the new beryllium bearing species hydroxylgugiaite, IMA 2016-009 from one of the three type localities. The...
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  • Nordstrandite
    MTR638138
    Stradner Kogel Quarry, Wilhelmsdorf, Styria, Austria
    Size: 
    1.2 × 2.2 × 2 cm
    Thumbnail (1-3cm)
    Description: 
    White crystal clusters of rare nordstrandite with phillipsite on matrix. Named after Robert A. Van Nordstrand (Feb. 17, 1918 - Feb. 6, 2000...
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  • Lavendulan
    MTR650642
    Clara Mine, Wolfach, Black Forest, Baden-Württemberg, Germany
    Size: 
    1.3 × 2.1 × 1 cm
    Thumbnail (1-3cm)
    Description: 
    Plenty of well developed blue-green aggregates of lavedulane on matrix from the renowned Clara Mine. Rare for the locality! Ex Hans Schmid...
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  • Sellaite
    MTR659384
    Clara Mine, Wolfach, Black Forest, Baden-Württemberg, Germany
    Size: 
    7.8 × 12.2 × 5 cm
    Cabinet (10-18 cm)
    Description: 
    This is a cut and polished specimen featuring radial white crystal clusters of rare sellaite in fluorite matrix from the famed Clara Mine.
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  • Amethyst
    MTR659386
    Turt Mine, Satu Mare, Romania
    Size: 
    15 × 10 × 6 cm
    Cabinet (10-18 cm)
    Description: 
    This is a beautiful old-time specimen of amethyst with minor siderite from this well-known Romanian mine. The specimen has to be seen in...
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  • Benjaminite
    MTR659381
    Outlaw Mine, Round Mountain, Nevada, United States of America
    Size: 
    0.5 × 1.1 × 0.3 cm
    Thumbnail (1-3cm)
    Description: 
    Silvery-metallic, striated benjaminite crystals on quartz matrix. Rare! Named after Marcus Benjamin (1857-1932), American chemist, engineer...
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  • Metastibnite
    MTR659339
    Steamboat Hot Springs, Washoe County, Nevada, United States of America
    Size: 
    2.7 × 3 × 1.7 cm
    Small miniature (3-4.5 cm)
    Description: 
    A rich coverage of red granular metastibnite on matrix. Analyzed by Dr. M. Murashko.
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  • Kostylevite
    MTR659344
    Koashva Open Pit, Khibiny Massif, Kola, Russian Federation
    Size: 
    2.6 × 3.1 × 1.8 cm
    Small miniature (3-4.5 cm)
    Description: 
    Plenty of excellent, lustrous, tabular crystals of rare kostylevite associated with green aegirine on matrix. Kostylevite is only known...
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  • Pottsite & Clinobisvanite
    MTR653818
    Linka Mine, Lander County, Nevada, United States of America
    Size: 
    1.3 × 2.3 × 1.2 cm
    Thumbnail (1-3cm)
    Description: 
    Orange micro-crystals of clinobisvanite with yellow pottsite on matrix. Rare! Analyzed by Sid Williams.
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  • Cryptophyllite
    MTR651676
    Tsentral`nyi, Rasvumchorr, Kola, Russian Federation
    Size: 
    2.8 × 3.2 × 1.8 cm
    Small miniature (3-4.5 cm)
    Description: 
    White elongated crystals of extremely rare cryptophyllite on matrix from the type and only locality for the species. Only few specimens are...
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  • Långbanite
    MTR659376
    Langban, Värmland, Sweden
    Size: 
    1 × 0.8 × 0.4 cm
    Thumbnail (1-3cm)
    Description: 
    Lustrous black columnar crystals of rare langbanite on matrix from the type locality for the species.
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  • Arsenpolybasite
    MTR652832
    Glasberg Quarry, Nieder-Beerbach, Hesse, Germany
    Size: 
    1.3 × 2 × 0.8 cm
    Thumbnail (1-3cm)
    Description: 
    Well developed, tabular, deep-red crystals of rare arsenpolybasite on matrix. A218
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  • Belosharite
    MTR635762
    Chelyabinsk Oblast, Southern Urals, Urals Region, Russian Federation
    Size: 
    1.9 × 1.7 × 1.2 cm
    Thumbnail (1-3cm)
    Description: 
    Rich white crystal aggregates of rare belosharite on matrix. Analyzed material.
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  • Magnetite
    MTR659382
    Dashkesan, Daşkəsən District, Azerbaijan
    Size: 
    3 × 5 × 1.7 cm
    Miniature (4.5-7 cm)
    Description: 
    A well formed, black matted luster magnetite crystal measuring 2 cm across is set nicely upon matrix. Very clean of damage.
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  • Chenevixite
    MTR659373
    Clara Mine, Wolfach, Black Forest, Baden-Württemberg, Germany
    Size: 
    3 × 3.8 × 2.5 cm
    Small miniature (3-4.5 cm)
    Description: 
    Plenty of botryoidal bright-green chenevixite on quartz matrix from the well-known Clara Mine. Named after Richard Chenevix (1774-1830),...
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  • Tungstibite
    MTR646062
    Clara Mine, Wolfach, Black Forest, Baden-Württemberg, Germany
    Size: 
    1.8 × 2.1 × 1.1 cm
    Thumbnail (1-3cm)
    Description: 
    Green crystal aggregates of rare tungstibite on matrix from the type locality for the species. Tungstibite is a very rare antimony-...
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  • Slavkovite & Mcnearite
    MTR659354
    Hilarion Mine, Lavrion, Attiki Prefecture, Greece
    Size: 
    1.5 × 2.4 × 1.4 cm
    Thumbnail (1-3cm)
    Description: 
    Plenty of blue aggregates of rare slavkovite with white crystals of rare mcnearite on matrix. Analyzed. Very rich specimen! Named after...
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  • Kobokoboite
    MTR659352
    Kobokobo Pegmatite, Lusungu River District, Kivu, Congo (Democratic Republic) (former Zaire)
    Size: 
    0.4 × 0.4 × 0.3 cm
    Micromount (under 1cm)
    Description: 
    Plenty of pearly white tabular crystals of kobokoboite on matrix from the type locality for the species. Very rare-only known from three...
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  • Eskolaite
    MTR659347
    Outokumpu, Eastern Finland Region, Finland
    Size: 
    1 × 1.8 × 1.2 cm
    Thumbnail (1-3cm)
    Description: 
    Lustrous black euhedral crystal of rare eskolaite in pyrrhotite matrix from the type locality for the species. Analyzed by Dr. M. Murashko...
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  • Matildite & Chalcopyrite
    MTR659374
    Clara Mine, Wolfach, Black Forest, Baden-Württemberg, Germany
    Size: 
    1 × 1.6 × 1 cm
    Thumbnail (1-3cm)
    Description: 
    Well developed lustrous metallic crystals of rare matildite with chalcopyrite on matrix from the renowned Clara Mine. Ex Gerd Tremmel...
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  • Charoite
    MTR659387
    Murunskii Massif, Chara River, Aldan Shield, Eastern Siberia, Russian Federation
    Size: 
    9.3 × 19 × 0.5 cm
    Museum (18cm plus)
    Description: 
    A beautiful, polished slab of lilac charoite in matrix from the type locality for the species. Charoite is only found at few Russian...
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  • Carrollite
    MTR659369
    Kamoya South Mine, Katanga, Congo (Democratic Republic) (former Zaire)
    Size: 
    3.5 × 4.8 × 2.7 cm
    Miniature (4.5-7 cm)
    Description: 
    Silvery metallic, well developed crystals of carrollite on calcite matrix. Very beautiful!
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Page 1 of 45 results