Meaning Of The Word Tourmaline
What's the definition of Tourmaline? Find Tourmaline meanings, definitions and more at the Real Dictionary online.
Tourmaline Meaning
| Tourmaline Definition |
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What's The Definition Of Tourmaline?
tourmaline in American English
a very hard, piezoelectric, rhombohedral mineral, (Na,Ca)(Mg,Fe,Al, Li)3Al6(BO3)3(Si6O18)(OH)4, of various colors, used as a gem and in making pressure gauges noun: any of a group of silicate minerals of complex composition, containing boron, aluminum, etc., usually black but having various colored, transparent varieties used as gems tourmaline in British English noun: any of a group of hard glassy minerals of variable colour consisting of complex borosilicates of aluminium with quantities of lithium, sodium, calcium, potassium, iron, and magnesium in hexagonal crystalline form: used in optical and electrical equipment |
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