Snowflake obsidian is a form of volcanic glass that features white or grayish “snowflake” shapes made of embedded cristobalite. These pretty patterns are not artificially added as a cheap ...
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Edmonton couple finds potential obsidian artifact in front yardLast year, Jennifer Yeoman and her husband Hector Lomack were doing some landscaping in their ... That black rock was a 4.6-pound chunk of obsidian core — which is volcanic glass that forms ...
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