標 本 名: | スピネル (Spinel)
| 化学組成: | MgAl2O4 | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | near Ah Phu village, Luc Yen ("Yuang Yang"; "Yueng Yang"), Yenbai (Yen Bai) Province, ベトナム (Vietnam) | This is a pretty big spinel aggregate from Vietnam, not all crystals undamaged nevertheless you get almost 1kg of spinel and on the fracture planes you can see partly some bluish transparency in the interior of the crystals.
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