Difference between revisions of "Cryptocrystalline"

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a term for glassy rocks which break with a conchoidal fracture, such as obsidian.
 
a term for glassy rocks which break with a conchoidal fracture, such as obsidian.
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[[Category: Anthropology]]
 
[[Category: Anthropology]]

Revision as of 09:39, 5 September 2019

a term for glassy rocks which break with a conchoidal fracture, such as obsidian.

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