| 单词 | pyrrhotite |
| 释义 | pyrrhotite [`pir·ǝ´tīt] MINERALOGY Fe1-xS A common reddish-brown to brownish-bronze mineral that occurs as rounded grains to large masses, more rarely as tabular pseudohexagonal crystals and rosettes; hardness is 4 on Mohs scale, and specific gravity is 4.6 (for the composition Fe7S8). |
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