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Rubis calcite . fr cristaux de corindon var rubis cristaux de calcite Luc Yen Mine Luc Yen Yenbai Yen Bai Province Vietnam crystals of corundum var ruby crystals of calcite Luc Yen Mine Luc Yen Yenbai Yen Bai Province Vietnam own Parent Gry Corundum Ruby Calcite Taken with Nikon D
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