How to distinguish between true and false obsidian bracelets

Real obsidian has good thermal conductivity, so it feels cold, colder than glass. In terms of specific gravity, obsidian feels heavier, while counterfeit glass usually feels lighter.

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Obsidian is translucent. When the strong flashlight is aimed at obsidian, the edge of real obsidian will produce yellow-brown light, while fake obsidian is mostly blue glass, which will produce blue light.

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The texture of obsidian is relatively hard, the hardness reaches 5.6~6.2 degrees, while the hardness of glass is usually around 3 degrees, so there is no scratch on the surface of obsidian, while the hardness of glass is low, and scratches will appear on the friction surface.

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Obsidian is made by grinding raw ore. Observing the surface with a magnifying glass may leave several pits, which is a natural phenomenon, while obsidian made of glass is very smooth and has no pores at all.

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When obsidian is placed in the sun, it can be seen that there are rainbow halos around it, such as yellow and green, but the fake with glass does not have these characteristics.

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