| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from California > Obsidian with Cristobalite inclusions (Snowflake Obsidian) |
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| DESCRIPTION: | No. 31325 |
| Mineral: | Obsidian with Cristobalite inclusions (Snowflake Obsidian) |
| Locality: | California |
| Description: | Shiny chunk of black obsidian, a natural volcanic glass, with gray inclusions of cristobalite, a polymorph of quartz. This formation is commonly called snowflake obsidian because of the resemblance to falling snowflakes. Old collection #468 |
| Overall Size: | 7x4.5x4 cm |
| Crystals: | |
| Archived: | For reference only |
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