WebObsidian is an extrusive igneous rock. It is occurring as a natural glass formed by the rapid cooling of viscous lava from volcanoes. Result of this formed, glass occupies more than … WebGreen Obsidian : What is green obsidian? #Geology #GeologyPage #Obsidian #Mineral Green Obsidian is one of Obsidian Rocks that contain impurities as Pure…

Green Obsidian Rock - Etsy

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Obsidian Rock (Mineraloid) Properties, Uses, Formation...

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