1104 Kozyrevskite, Arsenatnaya fumarole, Second scoria cone, Northern Breakthrough (North Breach), Great Fissure eruption (Main Fracture), Tolbachik volcano, Kamchatka Oblast’, Far-Eastern Region, Russia
This NEW SPECIES occurs as very tiny, grass-green to light green aggregates of coarse prismatic to acicular crystals on volcanic scoria, typically with darker green undefined Cu-sulfates and occasionally black tenorite. Formula: Cu4O(AsO4)2 ? orthorhombic...