, On the Mohs hardness scale, zoisite and hornblende (or tschermakite) have hardnesses about about 6½, whereas corundum has a hardness of 9.
比如，黝帘
和角闪（
钙镁闪）的摩氏硬度为6.5，而刚玉则达到9。
, On the Mohs hardness scale, zoisite and hornblende (or tschermakite) have hardnesses about about 6½, whereas corundum has a hardness of 9.
比如，黝帘和角闪（钙镁闪）的摩氏硬度为6.5，而刚玉则达到9。
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