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RE: Mineral Mondays #25 - Obsidian & Obsidian Dome 黒曜石と黒曜石のドーム
Very interesting! Thank you for sharing these facts about Obsidian! I remember seeing it used as eyes for some Maoi statues on Easter Island. =)
Yes, I read about obsidian being used on the Maoi. If it shines or sparkles humanity has used it! Thank you.