1) tourmalineNoun
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A mineral that is a complex borosilicate and hydroxide of aluminium containing iron and magnesium and calcium and lithium and sodium; it is usually black but occurs in transparent coloured forms that are used as gemstones | یورون اور ایلومینم کا مُرکّب سِلی کیٹ ۔ معدنی مُرکّب جو سیاہ رنگ میں پایا جاتا ہے ۔ |