| Mg4Al6(Si,Al,B)5O21(OH)
Mg₄Al₆(Si,Al,B)₅O₂₁(OH)
This sample of kornerupine is displayed in the Smithsonian Museum of Natural History. Kornerupine is a silicate mineral which contains boron as well as aluminum and magnesium. It has the composition Mg4Al6(Si,Al,B)5O21(OH). The sample at left is about 12 cm across and is from Oure Mississippi, Fiskernies district, Greenland.
这个kornerupine样本陈列在史密森尼自然历史博物馆中。kornerupine是一种含硼、铝和镁的硅酸盐矿物。其化学式为Mg₄Al₆(Si,Al,B)₅O₂₁(OH)。左图中的样本宽约12厘米,采自格陵兰岛福斯克尼耶斯地区,位于穆斯昆河附近。
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