Varieties of obsidian tumblestones, including snowflake, rainbow and apache tear obsidian.
black obsidian, a natural volcanic glass size guide: 22-28mm..
mahogany obsidian, natural volcanic glass. size guide: 18-22mm..
snowflake obsidian, natural volcanic glass with white patches similiar to snowflakes. Larger size si..
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snowflake obsidian, natural volcanic glass with white patches similar to snowflakes. Standard size, ..