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Melanothallite Gallery

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Melanothallite : Cu2[O|Cl2], Euchlorine : KNaCu3[O|(SO4)3], Klyuchevskite : K3Cu3(Fe3+,Al)[O|(SO4)2]2

Second scoria cone, Northern Breakthrough (North Breach), Great Fissure (Main Fracture) eruption, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia

Very dark-green, almost black prismatic crystals of melanothallite with emerald-green euchlorine. Thin olive-green prismes are partially altered klyuchevskite, it lost transparency but preserve composition. FOV is ~3x2.5 mm. Collected by S.F. Glavatskih in 1980. Pavel M. Kartashov collection and photo.
 © Pavel M. KartashovPhoto ID: 112455    View Count: 202

Melanothallite : Cu2[O|Cl2], Euchlorine : KNaCu3[O|(SO4)3]

Second scoria cone, Northern Breakthrough (North Breach), Great Fissure (Main Fracture) eruption, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia

~0.5 mm long very dark-green, almost black prismatic crystals of melanothallite with emerald-green euchlorine. Collected by S.F. Glavatskih in 1980. Pavel M. Kartashov collection and photo.
 © Pavel M. KartashovPhoto ID: 112451    View Count: 115

Melanothallite : Cu2[O|Cl2], Euchlorine : KNaCu3[O|(SO4)3], Klyuchevskite : K3Cu3(Fe3+,Al)[O|(SO4)2]2

Second scoria cone, Northern Breakthrough (North Breach), Great Fissure (Main Fracture) eruption, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia

Very dark-green, almost black prismatic crystals of melanothallite with emerald-green euchlorine and olive-green thin needles of klyuchevskite. FOV is ~3x2.5 mm. Collected by S.F. Glavatskih in 1980. Pavel M. Kartashov collection and photo.
 © Pavel M. KartashovPhoto ID: 112452    View Count: 113
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