The metamorphosed volcanic rock of the upper member of the Haizhou group is rich in alkali-feldspar (60 to 70%) and high potash feldspar (35 to 60%).
英
美
-
-
苏北海州群云台组上段变火山岩富含碱性长石(60-70%25)和钾长石(35-60%25);黑云母为富铁黑云母;部分火山岩含霓辉石、萤石等.
以上内容独家创作,受著作权保护,侵权必究
海词词典,十七年品牌