Green Tourmaline Quartz

Tourmalines are found in so-called primary deposits, in rocks of magmatic origin. They are mainly found in certain granites, metamorphic rocks and pegmatite’s, which are veins of mineralized intrusive rocks
Chemical composition: (Na, Li, Ca) (Fe2, Mg, Mn, Al)3 Al6 I(OH)4 I (BO3)3ISi6O18I
Hardness: 7 – 7,5
Density: 2,9 a 3,2 g/cm³
Family: –
Origin: Brazil, Madagascar, Russia, Sri Lanka, USA
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Green Tourmaline Quartz
Green Tourmaline Quartz - immagine 2

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