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Blue zircon
Volcanic bombs are large clots of volcanic lava rock that are ejected from a volcano during an explosive eruption
and Russia
It showed hardness of 5 - 6 and specific gravity of approx
Color: Red
Olivine Volcanic Bomb | Lava Coated Crystal | 293.8 gr | Mt Shadwell Volcano, Australia | SO24 Dogtooth Blue zirconAn olivine volcanic bomb is a type of volcanic rock that contains olivine crystals and has been ejected during a volcanic eruption. Olivine is a mineral that is commonly found in the Earth's mantle and is one of the first minerals to 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
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