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  • Cowlesite
    AMM1049907
    Dunseverick, County Antrim, Northern Ireland, United Kingdom
    Size: 
    2.7 × 2.4 × 2 cm
    Thumbnail (1-3cm)
    Description: 
    Fine specimen with lots of white cowlesite balls.
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  • Schreibersite
    AMM1049958
    Disko Island, Qeqertalik, Greenland
    Size: 
    0.3 × 0.3 × 0.2 cm
    Micromount (under 1cm)
    Description: 
    Fine lot with numerous specimens with brass yellow to brownish schreibersite.
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  • Uranocircite
    AMM1049988
    Streuberg Quarry, Bergen, Zobes-Bergen, Vogtland, Saxony, Germany
    Size: 
    6.1 × 5.3 × 3.2 cm
    Miniature (4.5-7 cm)
    Description: 
    Here is a beautiful specimen with a large crystal-aggregate of yellow-green tabular uranocircite high in contrast to the matrix. The main...
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  • Radian Barite
    AMM1049895
    Teplice, Ústí nad Labem Region, Czech Republic
    Size: 
    7.2 × 5.1 × 1.8 cm
    Small cabinet (7-10 cm)
    Description: 
    Fine and large specimen with lots of brown blocky barite crystals. The barite from this site is also called “radiobarite” (radian barite)...
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  • Pararammelsbergite
    AMM1049947
    Keeley-Frontier Mine, South Lorrain Township, Timiskaming District, Ontario, Canada
    Size: 
    1 × 1.1 × 0.5 cm
    Thumbnail (1-3cm)
    Description: 
    Very interesting sample of a cut from the old stock of Dr. Krantz, Bonn (Germany). The specimen shows abundant silver metallic...
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  • Sardashtite
    AMM1049956
    Barika, Sardasht, Sardasht County, West Azerbaijan Province, Iran
    Size: 
    1.7 × 1.2 × 0.7 cm
    Thumbnail (1-3cm)
    Description: 
    Excellent specimen with some elongated metallic sardashtite crystals on matrix. Sardashtite shows well-formed elongated crystals which are...
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  • Torbernite
    AMM1049970
    Les Bois Noirs, St-Priest-la-Prugne, Loire, Auvergne-Rhône-Alpes, France
    Size: 
    3.5 × 1.5 × 1.1 cm
    Small miniature (3-4.5 cm)
    Description: 
    Very beautiful specimen richly decorated with strong green tabular torbernite crystals. Numerous individual crystal bundles can be seen to...
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  • Bradaczekite
    AMM1049897
    Arsenatnaya Fumarole, Second Scoria Cone, Great Fissure, Tolbachik Volcano, Kamchatka Krai, Russian Federation
    Size: 
    1.7 × 1.3 × 1.1 cm
    Thumbnail (1-3cm)
    Description: 
    Excellent and richly decorated specimen with dark blue bradaczekite on matrix in association with minor black metallic tenorite. Very...
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  • Gold
    AMM1049925
    Nobles Knob Mine, Tennant Creek, Northern Territory, Australia
    Size: 
    2.2 × 1.9 × 2.4 cm
    Thumbnail (1-3cm)
    Description: 
    Very beautiful and richly decorated specimen with numerous gold aggregates on matrix. The gold shows a high contrast to the dark matrix and...
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  • Ferripyrophyllite
    AMM1049922
    Bastnäs Mines, Riddarhyttan, Skinnskatteberg, Västmanland County, Sweden
    Size: 
    0.6 × 0.4 × 0.3 cm
    Micromount (under 1cm)
    Description: 
    Richly covered specimen with light brown fine crystalline ferripyrophyllite high in contrast on dark matrix, associated with cerite-ce (...
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  • Magnesio-lucchesiite
    AMM1049936
    San Piero in Campo, Elba, Livorno Province, Tuscany, Italy
    Size: 
    1.8 × 1.5 × 1 cm
    Thumbnail (1-3cm)
    Description: 
    Fine specimen with lots of black magnesio-lucchesiite aggregates. A very rare and new member of the tourmaline-group. Specimen from type...
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  • Jôkokuite
    AMM1049932
    Johkoku Mine, Kaminokuni, Hiyama District, Hiyama Subprefecture, Hokkaidō Prefecture, Hokkaido Island, Japan
    Size: 
    0.1 × 0.1 × 0.1 cm
    Micromount (under 1cm)
    Description: 
    Rare specimen of a white jokokuite aggregate. Specimen from type locality. Jokokuite is only known from seven localities worldwide. Very...
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  • Metakahlerite
    AMM1049940
    Sophia Mine, Wittichen, Black Forest, Baden-Württemberg, Germany
    Size: 
    1.1 × 1.2 × 0.5 cm
    Thumbnail (1-3cm)
    Description: 
    Excellent specimen richly decorated with light yellow tabular metakahlerite in typical association with black uraninite. Richly decorated...
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  • Dewitite
    AMM1049911
    Monte Arsiccio Mine, Sant'Anna di Stazzema, Stazzema, Lucca Province, Tuscany, Italy
    Size: 
    2.2 × 1.1 × 0.3 cm
    Thumbnail (1-3cm)
    Description: 
    Fine specimen with silver-grey metallic dewitite on matrix. New and very rare silver bearing sulfide. Dewitite is only known from four...
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  • Autunite
    AMM1049894
    Wheal Edward, St Just, Cornwall, United Kingdom
    Size: 
    3 × 2.4 × 1.8 cm
    Small miniature (3-4.5 cm)
    Description: 
    Fine specimen with lots of bright yellow platy autunite crystals high in contrast to the matrix. Comes from a rarely seen British locale...
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  • Wölsendorfite
    AMM1049981
    Johannesschacht Mine, Wölsendorf, Schwarzach bei Nabburg, Upper Palatinate, Bavaria, Germany
    Size: 
    3 × 3 × 2 cm
    Small miniature (3-4.5 cm)
    Description: 
    Fine specimen with lots of orange wösendorfite with shows some crystallized structures. This is quite rare for wölsendorfite from the type...
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  • Čejkaite
    AMM1049904
    Eureka Mine, Castell-estaó, La Torre de Cabdella, La Vall Fosca, Lleida, Catalonia, Spain
    Size: 
    1 × 1 × 0.6 cm
    Thumbnail (1-3cm)
    Description: 
    Fine specimen with some yellow-greenish cejkaite aggregates on matrix. Cejkaite is only known from a few localities worldwide. Rare.
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  • Brianyoungite & Ktenasite
    AMM1049899
    Alexander Mine, Ramsbeck, Arnsberg, North Rhine - Westphalia, Germany
    Size: 
    1.8 × 1 × 0.3 cm
    Thumbnail (1-3cm)
    Description: 
    Fine specimen richly decorated with white brianyoungite balls in association with some ideally-formed blue platy ktenasite crystals and...
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  • Vandendriesscheite
    AMM1049974
    Novazza Mine, Valgoglio, Bergamo Province, Lombardy, Italy
    Size: 
    1.7 × 1.3 × 1 cm
    Thumbnail (1-3cm)
    Description: 
    Beautiful specimen with lots of orange vandendriesscheite crystal aggregates high in contrast to the matrix. Optically very appealing.
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  • Japan Law
    AMM1049931
    Duquesne-Washington Camp, Patagonia, Santa Cruz County,, Arizona, United States of America
    Size: 
    1.5 × 0.6 × 1.1 cm
    Thumbnail (1-3cm)
    Description: 
    Beautiful specimen of a well-formed and undamaged quartz-crystal of the Japanese Twin habitus (this means that two quartz crystals are...
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  • Shinichengite
    AMM1049962
    Shijiangshan Mine, Hexigten Banner, Chifeng City, Inner Mongolia, China (Peoples Republic)
    Size: 
    0.4 × 0.4 × 0.2 cm
    Micromount (under 1cm)
    Description: 
    Fine specimen of a crystal-aggregate of very pale pinkish shinichengite. New mineral from 2023 (IMA No. 2023-026). Specimen from type...
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  • Dongchuanite
    AMM1049914
    Sanguozhuang Mine, Dongchuan District, Kunming Prefecture, Yunnan Province, China (Peoples Republic)
    Size: 
    2 × 1.5 × 1.8 cm
    Thumbnail (1-3cm)
    Description: 
    Excellent specimen with light blue balls of dongchuanite in association with dark blue veszelyite. The specimen is confirmed and comes with...
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  • Dumontite
    AMM1049917
    Shinkolobwe Mine, Shinkolobwe, Kambove, Haut-Katanga, DR Congo
    Size: 
    0.6 × 0.4 × 0.3 cm
    Micromount (under 1cm)
    Description: 
    Fine specimen with golden yellow acicular crystals of dumontite on matrix. Very rare mineral. Specimen from type locality. Dumontite is...
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  • Steacyite
    AMM1049963
    Sirenevyi Kamen' Deposit, Murunskii Massif, Aldan Shield, Sakha Republic, Russian Federation
    Size: 
    2.4 × 1.5 × 1.1 cm
    Thumbnail (1-3cm)
    Description: 
    Fine specimen decorated with a large brownish-yellow steacyite aggregate on matrix. Steacyite is only known from a few localities worldwide.
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  • Mooihoekite
    AMM1049941
    Talnakh, Noril'sk, Putoran Plateau, Taimyr Peninsula, Krasnoyarsk Krai, Russian Federation
    Size: 
    0.6 × 0.5 × 0.2 cm
    Micromount (under 1cm)
    Description: 
    Fine specimen with lots of golden yellow mooihoekite.
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  • Herzenbergite & Westerveldite & Tin
    AMM1049928
    Oruro City, Cercado Province, Oruro Department, Bolivia
    Size: 
    1.7 × 0.7 × 0.1 cm
    Thumbnail (1-3cm)
    Description: 
    Very rare and extraordinarily large crystal aggregate of gray metallic herzenbergite. For herzenbergite this is an extremely large crystal...
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  • Uraninite
    AMM1049972
    I Mondei, Montescheno, Verbano-Cusio-Ossola Province, Piedmont, Italy
    Size: 
    3.5 × 2.2 × 0.5 cm
    Small miniature (3-4.5 cm)
    Description: 
    Fine specimen with a well-formed uraninite single-crystal on matrix. The crystal shows the habitus of an octahedron. In association with...
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  • Melanothallite & Fedotovite
    AMM1049938
    Second Scoria Cone, Great Fissure, Tolbachik Volcano, Kamchatka Krai, Russian Federation
    Size: 
    2 × 1.6 × 1 cm
    Thumbnail (1-3cm)
    Description: 
    Fine specimen with elongated black melanothallite (picture three and four) crystals on numerous intense green beautiful fedotovite crystals...
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  • Arsenopolybasite
    AMM1049891
    Měděnec, Klášterec nad Ohří, Krušné Hory, Ústí nad Labem Region, Czech Republic
    Size: 
    1 × 0.9 × 0.6 cm
    Thumbnail (1-3cm)
    Description: 
    Fine specimen with black metallic arsenic polybasite crystals with typical longitudinal striation.
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  • Alumoklyuchevskite & Lyonsite
    AMM1049888
    Yadovitaya Fumarole, Second Scoria Cone, Great Fissure, Tolbachik Volcano, Kamchatka Krai, Russian Federation
    Size: 
    2.1 × 1.1 × 1.8 cm
    Thumbnail (1-3cm)
    Description: 
    Excellent specimen absolutely richly decorated with dark green acicular alumoklyuchevskite on a large area on the frontside of the specimen...
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Page 1 of 48 results