APP Definition:(Mineralogy) a particular kind of sorosilicate; a mineral of the melilite group.Minerals of the group are solid solutions of several endmembers,the most important of whichare gehlenite and akermanite.鈣鋁黃長(zhǎng)石 gài lǚ huáng cháng shíFormula:(CaNa)2(......（本文共 608 字） [閱讀本文] >>
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