单词 | tetrahedrite |
释义 | tetrahedrite [´te·trǝ`hē´drīt] MINERALOGY (Cu,Fe,Zn,Ag)12Sb4S13 A grayish- black mineral crystallizing in the isometric system as tetrahedrons and occurring in massive or granular form; luster is metallic, hardness is 3.5-4 on Mohs scale, and specific gravity is 4.6-5.1; an important ore of copper. Also known as fahlore; gray copper ore; panabase; stylotypite. |
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