- Industry: Mining
- Number of terms: 33118
- Number of blossaries: 0
- Company Profile:
The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
親密的兩個不同的礦物,有時只限于那些次要的起源 ; 共生此外,岩石 (火成岩或熱變質) 由辛紋理的特點。還詳細說明: symplektite。比較: 偉晶岩
Industry:Mining