- daourite
- daurite
- elbaite
- lithium tourmaline
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锂电气石的英文
例句与用法
- The tourmaline is a kind of boron and silicate mineral , calling " the green imperial or royal seal " of the gems , there are its colors in many , the crystallization has nothing in common with each other , the crystal structure has tripartite crystal , six arrises body , post form body and one bunch of needles form fibrous respectively , the hardness of the tourmaline is generally about 7 . 3 - 9 . 6 , the relative density is 3 . 03 - 3 . 25
式中r代表金属阳离子，当r为mg2 fe2或li al3时，分别构成镁电气石黑电气石和锂电气石三个端员矿物种。电气石晶体呈近三角形的柱状，两端晶形不同，柱面具纵纹，常呈柱状针状放射状和块状集合体。