中外科学家最近在西藏蛇绿岩工业铬铁矿体中发现罕见的金刚石及由 6 0余种矿物组成的矿物群。专家说 ,这些在相当于地下 40 0ｋｍ深部的压力才可能生成的众多矿物是第一次在天然状态下被发现 ,矿物组合包括矿物及元素之多世界罕见。金刚石及其伴生矿物群的样品出自西藏泽当附近 Recently, Chinese and foreign scientists have found rare diamonds and mineral groups composed of more than 60 kinds of minerals in the ophiolitic chromite ore bodies in Tibet. Many of these minerals, which are likely to be generated under the pressure of a depth of 400 km underground, are the first to be found in natural conditions, experts say. There are rare mineral combinations and many more elements in the world. Samples of diamond and its associated mineral groups came from Tibet near Zetang