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  • Yurmarinite
    MTR687379
    Arsenatnaya Fumarole, 2nd Scoria Cone, Tolbachik, Far Eastern Region, Russian Federation
    Size: 
    0 × 0 × 0 cm
    Micromount (under 1cm)
    Description: 
    Yellow crystal aggregates of extremely rare yurmarinite on matrix from the type and only locality for the species. Analyzed by Prof. I...

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  • Pauladamsite
    MTR687381
    Lichtenberg open cast, Ronneburg U deposit, Thuringia, Germany
    Size: 
    0.3 × 0.5 × 0.2 cm
    Micromount (under 1cm)
    Description: 
    Plenty of well developed, silky-green, radial crystal tufts of extremely rare pauladamsite with blue chalcomenite on matrix. Analyzed by Dr...

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  • Paravinogradovite
    MTR687382
    Kukisvumchorr Mountains, Khibiny Massif, Kola, Russian Federation
    Size: 
    1.2 × 1.3 × 1 cm
    Thumbnail (1-3cm)
    Description: 
    Plenty of silky-white, tabular crystals of rare paravinogradovite pseudomorphing vinogradovite on matrix from the type and only locality...

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  • Indigirite
    MTR687383
    Sarylakh Deposit, Sakha Republic, Eastern Siberia, Russian Federation
    Size: 
    0 × 0 × 0 cm
    Micromount (under 1cm)
    Description: 
    Silky white crystal aggregate of extremely rare indigirite from the type and only locality for the species. Analyzed author's material. The...

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  • Rabejacite & Uranopilite
    MTR687416
    Rovnost Mine, Jachymov, Krusne Hory, Bohemia, Czech Republic
    Size: 
    2.4 × 4.5 × 1.5 cm
    Miniature (4.5-7 cm)
    Description: 
    Plenty of yolk crystal aggregates of rare rabejacite associated with pale yellow green crystals of uranopilite on matrix. Analyzed and from...

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  • Rouaite
    MTR687451
    Tenke, Tenke-Fungurume, Kolwezi, Katanga, Democratic Republic of the Congo
    Size: 
    2.7 × 1.8 × 1.6 cm
    Thumbnail (1-3cm)
    Description: 
    From a new, very limited find! Plenty of well developed, highly lustrous blue-green crystals of extremely rare rouaite lining small...

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  • Manganohörnesite
    MTR687569
    Monte Nero Mine, Rocchetta Vara, La Spezia Province, Liguria, Italy
    Size: 
    0.3 × 0.5 × 0.3 cm
    Micromount (under 1cm)
    Description: 
    Well developed colorless tabular crystals of rare manganohörnesite on matrix. Analyzed and only known from few localities.

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  • Mottramite
    MTR687572
    Silberbrunnle Mine, Haigerach, Baden-Württemberg, Germany
    Size: 
    3 × 3 × 2.5 cm
    Small miniature (3-4.5 cm)
    Description: 
    Plenty of olive green to brownish yellow crystal aggregates of mottramite on matrix from this well-known Black Forest locality. Very good...

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  • Soddyite
    MTR687563
    Menzenschwand, Black Forest, Baden-Württemberg, Germany
    Size: 
    1.1 × 1.6 × 1.2 cm
    Thumbnail (1-3cm)
    Description: 
    Sharp yellow crystals of rare soddyite on matrix. Ex Frank Rohowski collection. Named after Frederick Soddy (1877-1956), British physicist...

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  • Chernikovite & Torbernite
    MTR687565
    Prospect 20/21, Schneckenstein, Vogtland, Saxony, Germany
    Size: 
    0.8 × 1.8 × 0.3 cm
    Thumbnail (1-3cm)
    Description: 
    Plenty of tabular yellow crystals of rare chernikovite and green torbernite on matrix. Rare material! Analyzed. This outstanding material...

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  • Warikahnite
    MTR687561
    Plaka Mines, Lavrion, Attiki Prefecture, Greece
    Size: 
    1.7 × 1.8 × 1.5 cm
    Thumbnail (1-3cm)
    Description: 
    Lots of acicular white crystal sprays of rare warikahnite on matrix. Analyzed. Only known from Tsumeb and Lavrion, Greece! Named after...

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  • Svabite Ettringite & Bariopharmacosiderite
    MTR687578
    Clara Mine, Wolfach, Black Forest, Baden-Württemberg, Germany
    Size: 
    3.8 × 4.4 × 3 cm
    Small miniature (3-4.5 cm)
    Description: 
    Very rare and sought after from the renowned Clara Mine: Plenty of silky white crystals of svabite with acicular white crystals of...

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  • Pyrargyrite
    MTR687406
    Clara Mine, Wolfach, Black Forest, Baden-Württemberg, Germany
    Size: 
    1.5 × 2.2 × 2 cm
    Thumbnail (1-3cm)
    Description: 
    Well developed deep-red crystals of pyrargyrite with grey crystals of arsenopyrite on matrix from the famed Clara Mine. Ex G. Wendel...

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  • Fluorite
    MTR687573
    Schlücht Valley, Waldshut, Baden-Württemberg, Germany
    Size: 
    3.5 × 4.2 × 2 cm
    Small miniature (3-4.5 cm)
    Description: 
    Plenty of fluorite crystals as colorless hexacisoctahedrons on matrix. Rare and beautiful material!

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  • Milanriederite
    MTR687380
    Kombat Mine, Grootfontein, Namibia
    Size: 
    0.3 × 0.3 × 0.2 cm
    Micromount (under 1cm)
    Description: 
    Red crystals and aggregates of the new mineral species milanriederite, IMA 2018-041 with native copper on hausmannite matrix. Analyzed by...

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  • Eurekadumpite
    MTR687557
    Centennial Eureka Mine, Juab County, Utah, United States of America
    Size: 
    1.5 × 3 × 2 cm
    Small miniature (3-4.5 cm)
    Description: 
    Beautiful radial green blue aggregates of rare eurekadumpite on matrix from the type locality for the species. Only known from few...

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  • Steropesite
    MTR687570
    La Fossa Crater, Vulcano Island, Aeolian Islands, Sicily, Italy
    Size: 
    1.7 × 1.4 × 0.6 cm
    Thumbnail (1-3cm)
    Description: 
    Well developed lustrous yellow crystals of rare steropesite on matrix from the type and only locality for the species. Analyzed.

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  • Fluorite
    MTR687584
    Greenlaws Mine, Daddry Shield, Weardale, County Durham, United Kingdom
    Size: 
    8 × 9.5 × 4 cm
    Small cabinet (7-10 cm)
    Description: 
    From a new find of lustrous sharp green crystals of fluorite with purple crystal rims from the well-known Greenlaws Mine.

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  • Cuatrocapaite-(NH4)
    MTR684557
    Torrecillas Mine, Salar Grande, Iquique, Tarapacá Region, Chile
    Size: 
    0.7 × 1.3 × 0.2 cm
    Thumbnail (1-3cm)
    Description: 
    Satin-spar-like crystals of the new mineral species cuatrocapaite-(NH4), IMA2018-083, on matrix. Analyzed author's material!

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  • Rauchite
    MTR687377
    Belorechenskoe, Northern Caucasus, Russian Federation
    Size: 
    0.7 × 0.8 × 0.4 cm
    Micromount (under 1cm)
    Description: 
    Excellent tabular green crystals of very rare rauchite on matrix from the type and only locality for the species. Analyzed by Prof. I...

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  • Vlodavetsite
    MTR687385
    Second Scoria Cone, Northern Breakthrough, Tolbachik volcano, Far Eastern Region, Russian Federation
    Size: 
    0.4 × 0.6 × 0.3 cm
    Micromount (under 1cm)
    Description: 
    Colorless tetragonal crystals of extremely rare vlodavetsite on matrix from the type locality for the mineral. Only known from two places...

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  • Schöllhornite
    MTR687392
    Shusha, Ağcabədi District, Azerbaijan
    Size: 
    0 × 0 × 0 cm
    Micromount (under 1cm)
    Description: 
    Extremely rare schöllhornite in a fragment of the meteorite Indarch that fell in 1891. Analyzed. The bearer measures 5 x 5 mm for scale...

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  • Pyrolusite
    MTR687559
    Clara Mine, Wolfach, Black Forest, Baden-Württemberg, Germany
    Size: 
    2.8 × 3.8 × 2 cm
    Small miniature (3-4.5 cm)
    Description: 
    Excellent radial black metallic crystals of pyrolusite on matrix from the famed Clara Mine. Very beautiful!

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  • Kristiansenite
    MTR687576
    Heftetjern Pegmatite, Tørdal, Drangedal, Telemark, Norway
    Size: 
    3 × 4.5 × 2 cm
    Miniature (4.5-7 cm)
    Description: 
    Rare, well developed colorless kristiansenite with milky quartz and feldpsar on matrix from the type locality for the species. Only known...

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  • Dioptase On Cerussite
    MTR687587
    M'fouati Mine, M'fouati District, Bouenza Department, Congo (Republic)
    Size: 
    4 × 5 × 2.3 cm
    Miniature (4.5-7 cm)
    Description: 
    This is a choice dioptase specimen of exceptional quality from a new find! The dioptase crystals are lustrous, perfectly developed and are...

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  • Chlorargyrite & Native Silver
    MTR687453
    Clara Mine, Wolfach, Black Forest, Baden-Württemberg, Germany
    Size: 
    2.2 × 3.2 × 2.1 cm
    Small miniature (3-4.5 cm)
    Description: 
    Sharp, well developed crystals of chlorargyrite on matrix from the famed Clara Mine. Associated with shiny aggregates of native silver and...

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  • Comblainite Rutherfordine Vaesite & Uraninite
    MTR687460
    Shinkolobwe Mine, Shinkolobwe, Katanga, Democratic Republic of the Congo
    Size: 
    2.1 × 3.5 × 0.8 cm
    Small miniature (3-4.5 cm)
    Description: 
    Bluish-green micro crystals of extremely rare comblainite, straw yellow crystals of rutherfordine, yellow uranophane, silvery metallic...

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  • Thometzekite
    MTR687554
    Silberbrunnle Mine, Haigerach, Baden-Württemberg, Germany
    Size: 
    2 × 3.2 × 2.3 cm
    Small miniature (3-4.5 cm)
    Description: 
    Beautiful, well developed yellow crystal clusters of rare thometzekite with partially pseudomorph after segnitite/beudantite on matrix from...

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  • Ammoniozippeite
    MTR687417
    Rovnost Mine, Jachymov, Krusne Hory, Bohemia, Czech Republic
    Size: 
    3 × 3.6 × 0.6 cm
    Small miniature (3-4.5 cm)
    Description: 
    Plenty of yolk crystal tufts of the new mineral species ammoniozippeite, IMA 2017-073 on matrix. This exceptionally rich specimen is from...

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  • Priderite
    MTR687386
    Eveslogchorr Mountain, Khibiny Massif, Kola, Russian Federation
    Size: 
    1.4 × 3 × 1.2 cm
    Small miniature (3-4.5 cm)
    Description: 
    Lots of black tetragonal crystals of rare priderite on and in natrolite matrix. Analyzed.

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Page 1 of 38 results