格陵兰 紅寶石
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 form is typical of corundum, and its formation dates back over 2.5 billion years, making it one of the oldest known ruby deposits. The ruby is hosted in metamorphic rocks, specifically corundum-bearing anorthosite and amphibolite, indicating high-temperature and high-pressure geological conditions during its formation.
中文介绍
矿物：刚玉（红宝石品种） – Al₂O₃
产地：格陵兰岛 Sermersooq 纽克 Qeqertarsuatsiaat 区域 Aappaluttoq 红宝石矿
尺寸：4.40 厘米 x 3.25 厘米 x 1.20 厘米
重量：43.89 克
描述：此标本展示了形态良好的红宝石晶体，呈现出格陵兰红宝石特有的深红色。晶体的六方棱柱形态是刚玉的典型特征，其形成可追溯至超过25亿年前，是已知最古老的红宝石矿床之一。红宝石赋存在变质岩中，特别是含刚玉的斜长岩和角闪岩，表明其形成过程中经历了高温高压的地质条件。