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一、榴辉岩中宝石矿物据报导~*,苏北榴辉岩一般由19种矿物组成(表1)。本文作者认为,该区榴辉岩中的许多矿物可作为宝石资源看待。其中最重要的宝石矿物有6种。它们是石榴石(包括镁铝榴石和铁铝榴石)、绿辉石、金红石、蓝晶石、蓝闪石、绿帘石。(一)石榴石石榴石是榴辉岩中的主要造岩矿物。其含量占岩体组分的40—62%。组分也复杂,大多为铁铝榴石与镁铝榴石。深红、橙红、粉红和浅玫瑰红色。颗粒一般较小,大者1cm 左右。玻璃光泽。硬度7.16-7.95,比重3.52-4.04。化学性质稳定。
Gem Minerals in Eclogites It has been reported that the eclogites in the north of the euphemism are generally composed of 19 minerals (Table 1). The authors believe that many of the minerals in the eclogites in this area can be considered as gem resources. One of the most important gem minerals have 6 kinds. They are garnets (including almandine and almandine), omphacite, rutile, kyanite, glaucophane, epidote. Garnet Garnet is the major rock-forming mineral in eclogites. Its content accounts for 40-62% of rock mass components. The components are also complex, mostly almandine and almandine. Crimson, orange-red, pink and light rose-red. Particles generally smaller, about 1cm larger. Shiny glass Hardness 7.16-7.95, the proportion of 3.52-4.04. Chemical stability.