单词 | plagioclase feldspar |
释义 | plagioclase feldsparpla·gi·o·clase feldsparP0344600 (plā′jē-ə-klās′, -klāz′, plăj′ē-)plagioclase feldsparplagioclase feldspar(plā`jēəklās'): see feldsparfeldsparor felspar , an abundant group of rock-forming minerals which constitute 60% of the earth's crust. Chemically the feldspars are silicates of aluminum, containing sodium, potassium, iron, calcium, or barium or combinations of these elements. ..... Click the link for more information. . |
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