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Glaucophane is a silicate with composition Na2(Mg,Fe)3Al2Si8O22(OH)2. It contains six of the "big-8" elements of the Earth's crust. The sample above is about 18x15 cm and is from Valley Ford, California. It is formed with with apatite and chlorite. The sample is on display in the Smithsonian Museum of Natural History.
蓝闪石是一种含钠的硅酸盐,其化学式为Na₂(Mg,Fe)₃Al₂Si₈O₂₂(OH)₂。它含有地球地壳中“八大元素”中的六个。上面的样品尺寸约为18×15厘米,来自加利福尼亚州Valley Ford。该样品与磷灰石和氯绿石一起形成。该样品陈列在史密森尼自然历史博物馆中。
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