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MAHOGANY OBSIDIAN



Example Type:
Rock

Information:
Specimen Type: Igneous
Major Elements: Multiple Minerals
Record Date: 01.11
Specimen Source: United States, North America
Photo 1: Polished Sample

Notes:
Obsidian is mainly made up of glass. It's formed in areas near volcanic activity. This variety of Obsidian has impurities in the pure black glass.
Mahogany Obsidian Sample




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Geography4Kids: Earth Structure | Rock Types | BGC Cycles | Rock Cycles
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> Obsidian, Nahogany
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