ルビー / 方解石 (Ruby / Marble (Calcite))

製品番号: nl01-019

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ルビー / 方解石 (Ruby / Marble (Calcite))

標本名:	コランダム (鋼玉), ルビー (Corundum, Variety Ruby)
化学組成:	Al₂O₃
サイズ:	35,9 x 12,2 x 10,3 mm
重量:	27,15 ct or 5,43 g
透明:	半透明の
数量:	1
産地:	Minh Tien Mine, Luc Yen ("Yuang Yang"; "Yueng Yang"), Yenbai (Yen Bai) Province, ベトナム (Vietnam)

This is fine bipyramidal and doubly terminated ruby crystal from Vietnam. The crystal shows a very good habit and beautiful translucent color. No damages just some mica crystals are attached. The crystal faces disclosing a fine luster with crystals striation as well as polysynthetic twinning.

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