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Schorl Crystals on Feldspar Matrix - NER 023 |
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Measurements:
43
x 25 x 21 mm
Description: An arrangement of black tourmaline (schorl) crystals, with a high lustre, on a matrix of white feldspar. There is some damage to one of the sides and bottom of the specimen, where it got detached from the mother rock. Chemical Composition: NaFe2/3+Al6(BO3)3Si6O18(OH)4 Location: Erongo Mountains, Erongo Region, Namibia. Specimen Code: NER 023 US $ 35 |
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