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RE: Mineral Mondays #25 - Obsidian & Obsidian Dome 黒曜石と黒曜石のドーム

in #science • 6 years ago

Becouse of this blog it made me become intrested of gemstones. It would be so nice to go to mine some day. Obsidian looks so nice especially. Upvoted!

6 years ago in #science by
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