Igneous Rock Obsidian
Nov. 8, 2024
Obsidian | Rock, Color, Composition, & Uses | Britannica Obsidian : What is obsidian? Why obsidian is black? | Geology Page Obsidian Natural Glass Igneous Rock Obsidian
Nov. 8, 2024
Obsidian | Rock, Color, Composition, & Uses | Britannica Obsidian : What is obsidian? Why obsidian is black? | Geology Page Obsidian Natural Glass Igneous Rock Obsidian
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![raw mahogany Obsidian (volcanic glass) isolated - Stock Photo [71045711] - PIXTA](https://en.pimg.jp/071/045/711/1/71045711.jpg){kind=link}
