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  • Obsidian Black Tower 3"-4"

    Obsidian Black Tower 3"-4"

    Obsidian Black Tower 3"-4" <70grams   Mineral Information:   Black obsidian is a type of volcanic glass that is formed when molten lava cools rapidly without crystal growth. It is primarily composed of silica (about 70-75%) and contains trace amounts...

    $6.99
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