Ko te tourmaline te ingoa whānui o ngā kohuke o te rōpū tourmaline. He tino uaua tōna hanganga matū. He kohuke silicate hanganga mowhiti e tohuhia ana e te boron kei roto ko te konumohe, te konutai, te rino, te konupora me te lithium. [1] Ko te pakeke o te tourmaline he 7-7.5 te nuinga, ā, he rerekē te matotoru o ia momo. Tirohia te ripanga i raro nei mō ētahi atu kōrero. E mōhiotia ana hoki te tourmaline ko te tourmaline, te tourmaline, me ētahi atu.

He āhuatanga ahurei tō te tourmaline pērā i te piezoelectricity, te pyroelectricity, te hihi infrared tawhiti me te tukunga katote kino. Ka taea te whakakotahi me ētahi atu rauemi mā te whakamahi i ngā tikanga ā-tinana, ā-matū rānei hei whakaputa i ngā momo rauemi mahi, e whakamahia ana i roto i te tiaki taiao, te hikohiko, te rongoā, te ahumahi matū, te ahumahi mārama, ngā rauemi hanga me ētahi atu mara.

Tāwharau tourmaline
Ka kohikohi te tioata kotahi, te tioata moroiti rānei i keria tika mai i te maina hei hanga i tētahi rahinga o te tourmaline nui.