 | | Report (volume) | | based on considerations that extend far beyond the mine itself, in some instances relating to the overall...subject, as in a scale model of the workings of a mine, to a unifying concept that explains or describes...-----------(34b) Regionally metamorphosed rocks K. Derived mainly from eugeosynclinal rocks Low-sulfide...government believed might someday be economic ta mine. Stratiform deposits of large areal extent, such...EXAMPLES Stillwater Complex, USMT High Mg; low Na, K, and P. (Page , 1977) 11 Model 1--Con. -A.-A.- |  | | Book | | is the most expensive non-metallic mineral in the USA (going by cost of raw material), while the raw material...non-metallic raw materials to the front ranks in the mine industry. Scientific fundamentals of the laws governing...stones), pegmatitic minerals (muscovite, apatite, feldspar, rock crystal, quartz, fluorite, precious stones:...B. Fe Li, F, Ca, Cr, Ga, Sc, Sn, Cu. Muscovite K, Al, Si. Cr, F, Rb, Sr, Ba, Ga, V, Cs, Li, Te, Na... Ta, (Fe, Mn). RE, Ti, Zr, Sb, Bi. Alkali feldspar K, Al, Si, (Na, Ca). Ba, Rb, Sr, Ti, (Fe, Mn, |
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