Keywords: Rubis, calcite 16.jpg cristaux de corindon var rubis calcite Luc Yen Mine Luc Yen Yenbai Yen Bai Province Vietnam - cristal 50 mm crystals of corundum var ruby calcite Luc Yen Mine Luc Yen Yenbai Yen Bai Province Vietnam - crystal 50 mm Own 2009-01-15 Parent Géry Corundum Ruby Purple rubies Calcite Taken with Nikon D90 |