Natural Glasses from SciShow

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SwordfishMining
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Natural Glasses from SciShow

Post by SwordfishMining »

I'll jump over my shadow. https://www.virginvalleyopal.com"
Opals & more at my ESTY store https://swordfishmining.etsy.com"
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rocks2dust
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Re: Natural Glasses from SciShow

Post by rocks2dust »

Interesting. There are quite a few other natural amorphous materials/glasses out there:
  • amorphous shear banding in earthquake faults and similar stress points
  • bituminous rocks
  • amorphous graphite
  • pyroclastic glass such as Echo Mt. stone from northern California
Image
Echo Mt. Stone (trees buried in pyroclastic events that combusted and produced glass)
r2d

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