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3 gram Impact Melt Breccia also referred to as Suevite coming from the Alte Burg Quarry south rim area of the famous Ries crater Germany
Pure obsidian is usually dark in appearance
The sole source of tanzanite is the Merelani Hills in northern Tanzania
and pits on the surface that are due to inclusions that were plucked out during atmospheric entry or weathering
Volcanic Bomb | Rock Lava Crystal | 34-60 gr | Mt Shadwell Volcano, Australia | SO24 Size:A (45x33x40 mm) 3 gram Impact Melt BrecciaA volcanic bomb is a type of volcanic rock that contains crystals and has been ejected during a volcanic eruption. These are minerals that are commonly found in the Earth's mantle and crystallize as magma cools. Volcanic bombs are large clots of lava that are ejected from a volcano during an explosive eruption. They can vary in size, and their shapes are often streamlined due to their molten nature as they are thrown through the air. These pieces have
