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  • Graftonite
    MTR605394
    Grafton, New Hampshire, United States of America
    Size: 
    2.2 × 2.8 × 0.8 cm
    Thumbnail (1-3cm)
    Description: 
    Lustrous reddish brown massive lamellae of graftonite from the type locality for the mineral.
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  • Magnesiohatertite
    MTR605269
    Arsenatnaya Fumarole, 2nd Scoria Cone, Tolbachik, Far Eastern Region, Russian Federation
    Size: 
    0.6 × 0.4 × 0.4 cm
    Micromount (under 1cm)
    Description: 
    Well developed sharp crystals of the new species magnesiohatertite IMA 2016-078 on matrix from the type and only locality for the mineral...
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  • Sveinbergeite
    MTR605268
    Buer, Sandefjord, Vestfold, Norway
    Size: 
    0 × 0 × 0 cm
    Micromount (under 1cm)
    Description: 
    Submillimetric sections of thick lamellar crystals of deep green sveinbergeite, a new mineral of the astrophyllite group (2011). Analyzed...
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  • Tantalite-(Mn)
    MTR605271
    Ognevka Ta Deposit, Kalba Range, Eastern Kazakhstan Province, Kazakhstan
    Size: 
    1.5 × 1.5 × 1.2 cm
    Thumbnail (1-3cm)
    Description: 
    Well defined sharp lustrous crystals of tantalite-mn. Analyzed by Dr. M. Murashko.
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  • Sperrylite & Talnakhite
    MTR605393
    Talnakh, Noril'sk, Putoran Plateau, Eastern Siberia, Russian Federation
    Size: 
    1.8 × 1.4 × 1 cm
    Thumbnail (1-3cm)
    Description: 
    Well developed lustrous sharp crystals of the rare platinum mineral sperrylite in talnakhite / chalcopyrite matrix.
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  • Clinojimthompsonite
    MTR605423
    Akatani Mine, Shibata City, Chubu Region, Honshu Island, Japan
    Size: 
    1.9 × 1 × 0.3 cm
    Thumbnail (1-3cm)
    Description: 
    Beige crystal aggregates of rare clinojimthompsonite on a small matrix. Only known from few localities.
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  • Pradetite & Erythrite
    MTR605410
    Anton Mine, Heubach, Wittichen, Baden-Württemberg, Germany
    Size: 
    0 × 0 × 0 cm
    Micromount (under 1cm)
    Description: 
    Small samples of bright blue tabular crystals of extremely rare pradetite with erythrite mounted on a 9 x 7 mm large bearer. Analyzed by A...
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  • Ferrocarpholite
    MTR605266
    Biesenrode, Wippra Metamorphic Zone, Harz, Saxony - Anhalt, Germany
    Size: 
    2.3 × 3.2 × 1.7 cm
    Small miniature (3-4.5 cm)
    Description: 
    Lots of radial yellow crystal sprays of rare ferrocarpholite on matrix. Analyzed by Dr. M. Murashko.
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  • Arsenatrotitanite
    MTR605267
    Arsenatnaya Fumarole, 2nd Scoria Cone, Tolbachik, Far Eastern Region, Russian Federation
    Size: 
    0.3 × 0.3 × 0.2 cm
    Micromount (under 1cm)
    Description: 
    Salmon red crystals of the new species arsenatrotitanite IMA 2016-015 on matrix from the type and only locality for the mineral. Analyzed...
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  • Schäferite
    MTR605273
    Arsenatnaya Fumarole, 2nd Scoria Cone, Tolbachik, Far Eastern Region, Russian Federation
    Size: 
    1.4 × 1.9 × 1.2 cm
    Thumbnail (1-3cm)
    Description: 
    A new find for this very interesting locality: Lots of small orange yellow crystals of rare schäferite on matrix. Analyzed by Prof. I...
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  • Wulfenite
    MTR605360
    Mezica Mines, Mežica, Slovenia
    Size: 
    6 × 13.5 × 7.5 cm
    Cabinet (10-18 cm)
    Description: 
    Very rich and beautiful specimen of almost pure wulfenite from THE famous European wulfenite locality. This is old classic material.
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  • Shcherbakovite
    MTR605262
    Rasvumtchorr, Khibiny, Kola, Russian Federation
    Size: 
    1.2 × 2.9 × 1.5 cm
    Thumbnail (1-3cm)
    Description: 
    Brown elongated lustrous crystals of rare shcherbakovite in matrix from the type locality for the species. Only known from few localities...
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  • Rimkorolgite
    MTR605264
    Kovdor Zheleznyi Mine, Kovdor Massif, Kola, Northern Region, Russian Federation
    Size: 
    2 × 4 × 2 cm
    Small miniature (3-4.5 cm)
    Description: 
    Plenty of well developed radial crystals of rare rimkorolgite on matrix from the type and only locality for the species. Analyzed by Dr. M...
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  • Native Copper
    MTR605316
    Ray Mine, Pinal County, Arizona, United States of America
    Size: 
    10.2 × 5.5 × 3 cm
    Cabinet (10-18 cm)
    Description: 
    Beautiful arborescent native copper crystals on matrix from a well known US locality. Very nice!
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  • Štěpite & Vysokýite
    MTR605276
    Svornost Mine, Joachimstal, Bohemia, Czech Republic
    Size: 
    3.3 × 6.4 × 1.1 cm
    Miniature (4.5-7 cm)
    Description: 
    Plenty of well developed crystals and aggregates of rare stepite with even rarer green acicular crystals of vysokyite on arsenic matrix...
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  • Allanite-(Ce)
    MTR605426
    Iveland, Aust-Agder, Norway
    Size: 
    5.5 × 4.5 × 2 cm
    Miniature (4.5-7 cm)
    Description: 
    Section of a remarkably large crystal of allanite-ce from Norway.
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  • Schröckingerite
    MTR605398
    Svornost Mine, Joachimstal, Bohemia, Czech Republic
    Size: 
    2 × 2.8 × 1 cm
    Thumbnail (1-3cm)
    Description: 
    Plenty of yellowish schröckingerite crystals on matrix from the type locality for the mineral. Analyzed and very rich for the species!...
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  • Ferro-ferri-fluoro-leakeite
    MTR605272
    Selsurt Mountain, Lovozero Massif, Kola, Northern Region, Russian Federation
    Size: 
    2.3 × 2.1 × 0.4 cm
    Thumbnail (1-3cm)
    Description: 
    Well developed sharp crystals of rare ferro-ferri-fluoro-leakeite on matrix. Analyzed by Dr. M. Murashko. Named after Scottish geologist...
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  • Gaidonnayite Psm Eudialyte
    MTR605402
    Rasvumtchorr, Khibiny, Kola, Russian Federation
    Size: 
    3.2 × 6 × 4 cm
    Miniature (4.5-7 cm)
    Description: 
    This is a rare pseudomorph of gaidonnayite after eudialyte on matrix.
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  • Kanonaite
    MTR605265
    Le Coreux, Salmchateau, Vielsalm, Luxembourg Province, Belgium
    Size: 
    2.6 × 3 × 1.4 cm
    Small miniature (3-4.5 cm)
    Description: 
    Plenty of green crystals of rare kanonaite in matrix. Analyzed by Dr. M. Murashko.
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  • Nielsbohrite
    MTR605270
    Menzenschwand, Black Forest, Baden-Württemberg, Germany
    Size: 
    1.2 × 0.8 × 0.9 cm
    Thumbnail (1-3cm)
    Description: 
    Well developed yellow, rhombohedral crystals of the extremely rare uranyl-arsenate nielsbohrite on matrix from the type and only locality...
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  • Cerussite
    MTR605319
    Pribram, Bohemia, Czech Republic
    Size: 
    6 × 8.4 × 3.6 cm
    Small cabinet (7-10 cm)
    Description: 
    Beautiful, well developed cerussite crystals on galena matrix from a classic Czech locality.
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  • Ferricoronadite
    MTR605261
    Nežilovo, Veles, Macedonia (former Yugoslav Republic)
    Size: 
    0.4 × 0.4 × 0.3 cm
    Micromount (under 1cm)
    Description: 
    Black metallic aggregates of rare ferricoronadite IMA2015-093 from the type and only locality for the species. Analyzed by Prof. I. Pekov.
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  • Sklodowskite
    MTR605413
    KOV Open Pit, Kolwezi, Katanga, Congo (Democratic Republic) (former Zaire)
    Size: 
    1.5 × 2.2 × 0.7 cm
    Thumbnail (1-3cm)
    Description: 
    Plenty of beautiful yellow crystals of rare sklodowskite with green malachite on matrix. Named after Marie Sklodowska-Curie (1867-1934) who...
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  • Makatite
    MTR605397
    Aris Quarry, Windhoek, Khomas Region, Namibia
    Size: 
    3.9 × 6 × 2 cm
    Miniature (4.5-7 cm)
    Description: 
    Excellent glassy crystal sprays of rare makatite on phonolite matrix. Very good for the species!
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  • Braunerite & Línekite
    MTR605281
    Svornost Mine, Joachimstal, Bohemia, Czech Republic
    Size: 
    3.8 × 4.3 × 2 cm
    Small miniature (3-4.5 cm)
    Description: 
    An exceptional specimen with plenty of excellent tabular vivid-yellow crystals of braunerite (IMA 2015-123) in association with more yellow...
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  • Allargentum
    MTR605405
    Wenzel Mine, Frohnbach Valley, Oberwolfach, Baden-Württemberg, Germany
    Size: 
    1.1 × 1.8 × 0.8 cm
    Thumbnail (1-3cm)
    Description: 
    Massive lustrous aggregates of allargentum with some galena and calcite matrix from the famous and abandoned Wenzel Mine, Black Forest...
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  • Fluorophlogopite
    MTR605263
    Yadovitaya Fumarole, Great Fissure, Tolbachik, Far Eastern Region, Russian Federation
    Size: 
    1.7 × 2.8 × 1.3 cm
    Thumbnail (1-3cm)
    Description: 
    Plenty of small, lustrous, tabular crystals of rare fluorophlogopite on matrix. Analyzed by Dr. M. Murashko.
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  • Analcime
    MTR605395
    Seiser Alp, Bolzano Province, Trentino-Alto Adige, Italy
    Size: 
    4.3 × 4.6 × 3 cm
    Miniature (4.5-7 cm)
    Description: 
    A perfect analcime trapezohedron 4.3 cm across on a small matrix from a classic Alpine locality, now protected by law (collecting is...
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  • Paratacamite-(Ni)
    MTR605419
    Carr Boyd Ni Mine, Goongarrie, Western Australia, Australia
    Size: 
    2.2 × 3 × 1.2 cm
    Small miniature (3-4.5 cm)
    Description: 
    Well developed green crystals of rare paratacamite-ni on matrix from the type and only locality for the species. Associated with pale green...
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