dravite
- n.镁电（气）石
dravite-
According to electronic microprobe and X-ray diffraction analysis results , it is iron-magnesium tourmalinite which belongs to transitional type between dravite and iron tourmalinite .
电子探针和X衍射结果表明，该电气石矿主要矿物成分为铁镁电气石，属镁电气石和铁电气石的过渡类型。
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It was found that the Schorl or dravite in schorl-dravite group that is produced from pegmatite and has good crystal degree had a strong intensity of spontaneous polarity by electron-beam bombardment and X-ray diffraction of varying the temperature .
利用电子束轰击结合变温XRD分析发现在Schorl-dravite系列电气石中，产于伟晶岩的，结晶度比较高的Mg电气石或Fe电气石具有较高的自发极化强度。
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