Dravite
Dravite（矿物名）
NaMg3Al6(BO3)3(Si6O18)(OH)4
NaMg₃Al₆(BO₃)₃(Si₆O₁₈)(OH)₄
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Dravite is a silicate with composition NaMg3Al6(BO3)3(Si6O18)(OH)4. Dravite is a member of the tourmaline family. This sample of dravite, displayed in the Smithsonian Museum of Natural History, originated in Franklin, New Jersey. The sample is 12 cm across. 钻石是一种含钠的硅酸盐，其化学式为NaMg₃Al₆(BO₃)₃(Si₆O₁₈)(OH)₄。钻石属于碧玺家族。这件钻石标本陈列在史密森尼国家自然历史博物馆中，产自新泽西州弗兰克林。标本的直径为12厘米。
 This dravite sample is 2-3cm across and originated in Yinnietharra, Western Australia. 这个钻石样本宽约2-3厘米，产自澳大利亚西海岸的Yinnietharra。 |
Mindat: Dravite
Mindat: 钻石石英
| Minerals
矿物 |
索引
| HyperPhysics*****Geophysics
HyperPhysics ***** 地球物理学 | R Nave |
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