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对西藏北部某超基性岩中原生铬铂矿及砂铂矿的精矿进行了详细镜下鉴定和电子探针分析,找到了26种铂族矿物(包括亚种)。其中以Os-Ir-Ru-Pt系合金和自然元素矿物为主,其他铂族元素硫化物、硫砷化物和砷化物矿物量较少。在我国首次找到了等轴钌锇铱矿。
A detailed microscopic identification and electronic probe analysis of primary chromite and sapphire ore in an ultrabasic rock in northern Tibet were carried out and 26 kinds of platinum group minerals (including subspecies) were found. Among them, Os-Ir-Ru-Pt series alloys and natural elemental minerals are the main types, while other platinum group elemental sulfides, sulfur arsenic and arsenide minerals are less in quantity. In our country for the first time found equiaxed ruthenium and osmium iridium mine.