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Jewelry Culture

Side-by-side comparison of black obsidian bracelet with glassy luster versus black onyx bracelet with matte banded appearance

Obsidian vs Onyx: What’s Actually the Difference?

Short answer: obsidian is volcanic glass formed from rapidly cooled lava. Onyx is a type of chalcedony (microcrystalline quartz) formed slowly in volcanic gas cavities. They look similar from a distance but are completely different materials. Here’s what that actually means if you’re buying jewelry. What obsidian actually is Obsidian is volcanic glass. Literally. When […]

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Jewelry Culture