| (Na,Ca)(Si,Al)4O8
Andesine is a silicate with composition (Na,Ca)(Si,Al)4O8 . This gem is 8.04 carats and is from Nyma, Tibet. The sample is on display at the Smithsonian Museum of Natural History.
安迪斯石是一种含钠和钙的硅酸盐,化学式为(Na,Ca)(Si,Al)₄O₈。这种宝石重8.04克拉,产自西藏那玛。样品陈列于史密森尼国家自然历史博物馆。
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