Black Obsidian Crystals - Volcanic Glass
Black obsidian tumbled stones from Mexico.
Due to its natural formation as a volcanic glass, obsidian often contains minute inclusions, which may be traces of other minerals or gas bubbles. These can sometimes be visible in tumbled stones, especially under strong light or close inspection.
Obsidian is known for its rich, glossy black appearance, but flawless, polished black obsidian is rare. Due to the way this volcanic glass forms, most stones exhibit minute inclusions or subtle flow lines.
Impurities in obsidian are relatively common. The impurities present often determine the stone's colour and type of sheen.
Obsidian forms from lava that cools and solidifies. The molten rock cools so rapidly that crystals don't have time to grow.
These finely polished black obsidian crystals are medium-sized tumbled stones, but size can vary from piece to piece.
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Mother of Pearl
