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Cadmoindite : CdIn2S4 | |
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Kudriavy (Kudryavyi) volcano, Iturup Island, Kuril Islands, Sakhalinskaya Oblast', Far-Eastern Region, Russia A very tiny (~10 micron) bipyramidal black crystal of cadmoindite on matrix. These are fumarole deposits. FoV approx 0.05mm. |
| © Rick Turner, 2009 | Photo ID: 247799 View Count: 33 |
Cannizzarite : Pb4Bi6S13 | |
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Kudriavy (Kudryavyi) volcano, Iturup Island, Kuril Islands, Sakhalinskaya Oblast', Far-Eastern Region, Russia Very thin laths forming a twinned crystal 2 mm across. Part of a very limited find. Robert Meyer specimen and photo. |
| © 2004 ROM | Photo ID: 15069 View Count: 615 |
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Kudriavy (Kudryavyi) volcano, Iturup Island, Kuril Islands, Sakhalinskaya Oblast', Far-Eastern Region, Russia 7.4 x 4.0 x 3.9 cm. This is a remarkably rich, sparkling specimen just smothered with sharp microcrystals of this rare species (to perhaps 1mm). This location has also given us rheniite, and is a very important occurrence for rare metallic species formed from the volcanic vents here. Analyzed and from the inventory of Josef Vajdak. |
| © Rob Lavinsky | Photo ID: 170101 View Count: 92 |
Enargite : Cu3AsS4, Alunite : KAl3[(OH)3|SO4]2 | |
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Mendeleev volcano (Ruasu-dake), Kunashir Island, Kuril Islands, Sakhalinskaya Oblast', Far-Eastern Region, Russia Before discovery of Bereznyakovskoe deposit enargite was known on the USSR territory only in microscopic size grains. So here you see the largest and the best crystalline group of enargite known up to now from territory of former USSR. Associated mineral is pearly white alunite scales. FOV is ~12x10 mm. Collected in early 70th by L. M. Lebedev ... |
| © Pavel M. Kartashov | Photo ID: 121135 View Count: 149 |
Goldfieldite : Cu12(Te,Sb,As)4S13, Chalcopyrite : CuFeS2 | |
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Prasolovskoe Au deposit, Kunashir Island, Kuril Islands, Sakhalinskaya Oblast', Far-Eastern region, Russia Triangular sections of goldfieldite crystals in quartz vein. Associating minerals are chalcopyrite, Te-bearing tetrahedrite, native tellur and gold (both are micro size). FOW ~1 cm. Pavel M. Kartashov collection and photo. |
| © Pavel M. Kartashov | Photo ID: 100413 View Count: 222 |
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Prasolovskoe Au deposit, Kunashir Island, Kuril Islands, Sakhalinskaya Oblast', Far-Eastern region, Russia Group of twinned Goldfieldite crystals in the cavity of quartz vein. FOW 2 mm. Pavel M. Kartashov collection and photo. |
| © Pavel M. Kartashov | Photo ID: 100411 View Count: 215 |
Goldfieldite : Cu12(Te,Sb,As)4S13, Cuzticite : Fe3+2[TeO6] · 3H2O | |
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Prasolovskoe Au deposit, Kunashir Island, Kuril Islands, Sakhalinskaya Oblast', Far-Eastern region, Russia Triangular sections of tetrahedral crystals of Goldfieldite. Well formed its crystals are wisible in the cavity at the right part of the picture. Beige Cuzticite microcrystalline spherulitic agregates grow on the bottom of this cavity. Other cavities in upper part of the image are filled with brownish aggregates of Pyrophillite and Hydromica ... |
| © Pavel M. Kartashov | Photo ID: 100419 View Count: 206 |
Greenockite : CdS | |
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Kudriavy (Kudryavyi) volcano, Iturup Island, Kuril Islands, Sakhalinskaya Oblast', Far-Eastern Region, Russia Tiny crystals of greenish greenockite covering porous, volcanic matrix. Field of view about 13 mm. The specimen was given to me by the Russian mineralogist Pavel M. Kartashov, and it is in the micromount collection of OT. Ljostad. |
| © OT. Ljostad | Photo ID: 47017 View Count: 317 |
Kudriavite : (Cd,Pb)Bi2S4, Greenockite : CdS | |
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Kudriavy (Kudryavyi) volcano, Iturup Island, Kuril Islands, Sakhalinskaya Oblast', Far-Eastern Region, Russia Small metallic-silver striated prismatic crystals of kudriavite with orange to yellow tabular greenockite. Part of holotype specimen. FOV is ~2x1.8 mm. Pavel M. Kartashov collection and photo. |
| © Pavel M. Kartashov | Photo ID: 114571 View Count: 240 |
Monteponite : CdO | |
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Kudriavy (Kudryavyi) volcano, Iturup Island, Kuril Islands, Sakhalinskaya Oblast', Far-Eastern Region, Russia Crystalline crust of monteponite over basalt basement 2x1.7x1 cm. This is the best specimen known from the mineral find of 1996. Automaticaly it is the best from find on all USSR territory. FOV ~1.2x1 cm. Pavel M. Kartashov collection and photo. |
| © Pavel M. Kartashov | Photo ID: 72321 View Count: 864 |
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