Kragero, Norway/110
Previous | Home | NextAnother interesting mineral is schorl, the black form of tourmaline, with the complex formula of an aluminoborosilicate, NaFe3Al6(OH)4(BO3)3Si6O18.
Kragero, Norway/110Previous | Home | NextAnother interesting mineral is schorl, the black form of tourmaline, with the complex formula of an aluminoborosilicate, NaFe3Al6(OH)4(BO3)3Si6O18. |
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