2005/05/20 | 莫斯硬度标[Mohs Hardness Scale]
类别(℃〖化学〗) | 评论(0) | 阅读(49) | 发表于 20:17
hardness mineral mnemonic
1 talc Those
2 gypsum girls
3 calcite can
4 fluorite flirt
5 apatite and
6 orthoclase other
7 quartz queer
8 topaz things
9 corundum can
10 diamond do.
0

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