Great South Gems & Minerals

• Black Obsidian, Volcanic Glass • 
(Mexico)

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• Black Obsidian, Volcanic Glass • 

volcanic glass - obsidian - Apache Tears

35 Piece flat of black volcanic glass, called obsidian.

Early man used this natural volcanic glass for making of many tools; arrowheads, scrapers, knives, ax heads and much more. In modern times this material has been used for making beads, cabochons, and other uses in jewelry making. Even today there are peoples living in remote parts of the world that still use this material as tools.

Hardness 5 to 5.5 on the Mohs scale. See complete write-up on obsidian.

Obsidian comes in an array of colors, such as Snowflake Obsidian, which is a favorite for carving and for the lapidary field, Black, Brown, Rainbow, Silver sheen, Gold sheen, and occasionally green, and, rarely clear.

Natural small obsidian nodules are called Apache Tears. These are prized by collectors and used as beads. Obsidian is an Igneous rock that occurs in lava flows. Obsidian has a high silicon dioxide (quartz) content.

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