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矿物学 Le Bourneix公司自1982年以来开采的Gros-Gallet矿床系由石英透镜体组成,其上部赋存于正片麻岩中,而下部赋存于蚀变不同的云母片岩中。
Mineralogy Le Bourneix’s Gros-Gallet deposit, which has been mined since 1982, consists of a quartz lens with an upper part hosted in orthogneiss and a lower part deposited in mica schist with different alterations.