soda felspar 碱长石
felspar lump 长石
celsian-felspar 钡长石
baryta felspar 钡冰长石
felspar powder 长石粉
felspar analyses 长石分析
N any of a group of hard rock-forming minerals consisting of aluminium silicates of potassium, sodium, calcium, or barium: the principal constituents of igneous rocks. The group includes orthoclase, microcline, and the plagioclase minerals 长石
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