Obsidian

Definition of Obsidian as it relates to Collectibles, Rocks and Minerals, Petoskey Stones

Obsidian: A naturally occurring volcanic glass formed by rapid cooling of lava from a volcano. Often characterized by its dark, black or dark green color, obsidian is often used as a collectible due to its unique appearance and historical significance. It can be found in various forms, including raw nuggets, polished stones, and intricately carved figurines. Obsidian has been used for thousands of years by ancient civilizations for tools, weapons, and decorative purposes. In addition to obsidian, this category may also include other types of collectible rocks and minerals, such as Petoskey Stones, which are fossilized coral found primarily in the Great Lakes region of North America.

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