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Rough Obsidian (volcanic Glass) Rock Isolated Stock Photo - Image of isolated, crystalline: 170797494
Obsidian | Rock, Color, Composition, & Uses | Britannica
OBSIDIAN SNOWFLAKE X-Large ( 1-1/4 to 2") polished volcanic glass 1/2 lb | eBay
210 gr black obsidian (volcanic glass rock) | eBay
