Graphite
石墨
 | CThese samples of graphite are displayed in the Smithsonian Museum of Natural History. Graphite is a form of carbon. The sample at left is about 12 cm across and is from Canada. 这些石墨样品陈列在史密森尼自然历史博物馆中。石墨是碳的一种形式。左边的样品宽约12厘米，来自加拿大。
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Carbon in the graphite form is made up of layers of carbon atoms which can be induced to move relative to each other. It is used as a dry lubricant. It is much softer than carbon in the diamond form, which is the hardest mineral. Graphite has a hardness of 1-2 compared to 10 for diamond. 石墨中的碳由层状的碳原子组成，这些层可以被诱导相对移动。它用作干性润滑剂。与钻石形式的碳相比，石墨要软得多，而钻石是 hardest 的矿物。石墨的硬度为 1-2，相比之下，钻石的硬度为 10。 |  |
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This sample is graphite with calcite from Ticonderoga, New York. The sample is about 15 cm wide. 此样本为来自纽约蒂康德罗加的石墨和方解石。样本宽约15厘米。
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Mindat: Graphite
Mindat: 石墨
| Minerals
矿物 |
索引
| HyperPhysics*****Geophysics
HyperPhysics ***** 地球物理学 | R Nave |
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