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Mahogany Obsidian is semi precious stone material that is a deep black with blood red streaks. The red coloration is likely the result of trapped hematite or iron. Mahogany Obsidian was probably n ...
Silver Sheen Obsidian or Gold Sheen Obsidian - (Page)In Silver Sheen Obsidian or Gold Sheen Obsidian, when the material is held in bright light it has a flash of sparkling silver or gold colored chatoyance or light seeming to glow from within. Both ...
Mexico Rocks and Minerals - (Page)Mexico is another country rich in rock and mineral resources. Unfortunately a lot of those resources remain unexplored. There is a great Trans-Mexican Volcanic Belt, which crosses the entire count ...