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电气石为碧玺的矿物学名,英文名称为Tourmaline,属于复杂的硼硅酸盐矿物,化学分子式为Na(Mg,Fe,Mn,Li,Al)3Al6[Si6O18][BO3]3(OH,F)4,其中铁、镁、锂、锰、铝等金属离子可以相互替代,各离子的含量的不同,会直接影响到电气石颜色和种类的不同。富铁电气石呈黑色和 ...
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