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Umgubo weTourmaline
I-Tourmaline powder yipowder efunyenwe ngokucholwa ngomatshini i-original tourmaline ore emva kokususa ukungcola.I-tourmaline powder esetyenzisiweyo kunye nehlanjululwayo inesizukulwana esiphezulu se-anion kunye ne-infrared emissivity.I-Tourmaline ikwabizwa ngokuba yiTourmaline.I-Tourmaline ifomyula yeekhemikhali eziqhelekileyo yi-NaR3Al6Si6O18BO33 (OH, F.).I-4, ikristale yeyosapho lwenkqubo ye-trigonal ye-cyclic structure silicate minerals ngokubanzi.Kwifomula, u-R umele i-cation yentsimbi.Xa i-R i-Fe2 +, yenza i-crystal tourmaline emnyama.Iikristale ze-tourmaline zikwimo yeekholomu eziphantse zibe zinxantathu, ezinemilo ye-crystal eyahlukeneyo kuzo zombini iziphelo.Iikholamu zinemigca yobude, ngokufuthi ikwimo yeekholamu, iinaliti, iiradials, kunye neeaggregates ezinkulu.Iglosi yeglasi, iglosi yeresin eyaphukileyo, iguquguqukayo ukuya elubala.Akukho cleavage.Mohs ubunzima 7-7.5, ubunzima obuthile 2.98-3.20.Kukho i-piezoelectricity kunye ne-pyroelectricity.
