Learning Geology Obsidian
Formation Of Obsidian. Web obsidian is an igneous rock that forms when molten rock material cools so rapidly that atoms are unable to arrange themselves.
Web obsidian is an igneous rock that forms when molten rock material cools so rapidly that atoms are unable to arrange themselves.
Web obsidian is an igneous rock that forms when molten rock material cools so rapidly that atoms are unable to arrange themselves. Web obsidian is an igneous rock that forms when molten rock material cools so rapidly that atoms are unable to arrange themselves.
