Black Obsidian

Black Obsidian

This collection features Black Obsidian specimens formed from rapidly cooled volcanic lava, resulting in a natural volcanic glass rather than a crystalline mineral. Obsidian develops when silica rich lava cools too quickly for crystal growth, producing a smooth glassy texture and sharp conchoidal fracture.

Black Obsidian is valued for its deep black colour, reflective surface and clean fracture patterns. It commonly occurs in polished forms, blades, spheres and natural fragments where its glass structure and surface finish are clearly visible. This collection highlights Black Obsidian pieces that display consistent colour, clean polish and authentic volcanic origin.

To learn more about Obsidian formation and volcanic glass properties, explore our Obsidian guide in the Mineral Vault.

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