长石
7.Accurate Determination of Potassium and Sodium in Potash Feldspar and Soda Feldspar Reference Samples
8.Industry: petroleum, diamonds, iron ore, phosphates, feldspar, bauxite, uranium, gold.
9.Mineral constituents consist mainly of jadeite, aegirine-augite, magnesio-riebeckite, winchite, magnesio-hornblende, actinolite, quartz, albite, rutile and sphene.
10.An igneous rock composed chiefly of plagioclase and orthoclase, with small amounts of other minerals.


