ZnAl2O4
ZnAl₂O₄
These samples of gahnite are displayed in the Smithsonian Museum of Natural History. Gahnite is a oxide mineral of zinc and aluminum with the composition ZnAl2O4. The sample at left is about 10 cm across and is from Franklin, New Jersey. It is described as gahnite with rhodonite.
这些刚玉矿石陈列在史密森尼自然历史博物馆中。刚玉是一种含锌和铝的氧化物矿物,化学式为ZnAl₂O₄。左侧的样品宽约10厘米,来自新泽西州弗兰克林。该样品被描述为刚玉并含有玫瑰石。
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