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Black Obsidian Tumbled Mineral Specimen | 5 pcs.


Out of stock

SKU: GF-114 Categories: ,

Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth.

• 5 tumbled pieces per package
• Appx. 1/4 – 1/2″


Weight 1 oz