![14. Obsidian is volcanic glass formed when silica-rich lavas are cooled... | Download Scientific Diagram 14. Obsidian is volcanic glass formed when silica-rich lavas are cooled... | Download Scientific Diagram](https://www.researchgate.net/publication/230752425/figure/fig84/AS:669534935592972@1536640976196/Obsidian-is-volcanic-glass-formed-when-silica-rich-lavas-are-cooled-too-rapidly-for.png)
14. Obsidian is volcanic glass formed when silica-rich lavas are cooled... | Download Scientific Diagram
![collection of various Obsidian (volcanic glass) natural mineral gem stones and samples of rock isolated on white background Stock Photo | Adobe Stock collection of various Obsidian (volcanic glass) natural mineral gem stones and samples of rock isolated on white background Stock Photo | Adobe Stock](https://as2.ftcdn.net/v2/jpg/03/97/62/43/1000_F_397624347_itbVPPLx3WUUI6eCiCgHZHJqU1vtdRsC.jpg)
collection of various Obsidian (volcanic glass) natural mineral gem stones and samples of rock isolated on white background Stock Photo | Adobe Stock
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