Corundum (Variety: Ruby) Specimen 刚玉（红宝石品种）标本 English Description Mineral: Corundum (Variety: Ruby) – Al₂O₃ Locality: Republic of Karelia, Russia Dimensions: 3.90 cm x 3.00 cm x 2.10 cm Description: This specimen features a well-formed ruby crystal exhibiting a deep red to purplish-red hue, characteristic of Russian rubies. The crystal’s short prismatic form is typical of corundum,…
Corundum (Variety: Ruby) with Graphite and Pyrite 刚玉（红宝石品种）伴石墨和黄铁矿 English Description Minerals: Corundum (Variety: Ruby) – Al₂O₃, Graphite – C, Pyrite – FeS₂ Locality: Amstall, Mühldorf, Krems-Land District, Lower Austria, Austria Dimensions: 5.60 cm x 4.95 cm x 3.35 cm Weight: 95.09 grams Description: This specimen features well-formed ruby crystals embedded in a matrix of graphite…
Corundum (Variety: Ruby) Specimen 刚玉（红宝石品种）标本 English Description Mineral: Corundum (Variety: Ruby) – Al₂O₃ Locality: Aappaluttoq Ruby Mine, Qeqertarsuatsiaat area, Nuuk, Sermersooq, Greenland Dimensions: 4.40 cm x 3.25 cm x 1.20 cm Weight: 43.89 grams Description: This specimen features a well-formed ruby crystal, showcasing the deep red hue characteristic of Greenland rubies. The crystal’s hexagonal prismatic…
坦桑尼亚多多马地区姆普瓦普瓦区Winza矿区的红宝石（刚玉）与蓝晶石共生标本 坦桑尼亚 Winza 红宝石与蓝晶石标本 Ruby and Kyanite Specimen from Winza, Tanzania 中文介绍 矿物种类：红宝石（刚玉变种，Al₂O₃）与蓝晶石（Al₂SiO₅） 产地：坦桑尼亚多多马地区姆普瓦普瓦区 Winza 尺寸：7.50 cm x 5.65 cm x 2.50 cm 重量：104 克 描述：此标本展示了红宝石与蓝晶石的罕见共生，反映了高压变质环境下的铝富集矿物形成过程。 红宝石晶体具有浓郁的红色，与蓝晶石的蓝绿色调形成鲜明对比，展现出色彩和晶体形态的完美结合。 English Description Minerals: Ruby (Variety of Corundum, Al₂O₃) and Kyanite (Al₂SiO₅) Locality: Winza, Mpwapwa District, Dodoma Region, Tanzania Dimensions: 7.50 cm x 5.65 cm x 2.50 cm Weight:…