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Schorl, Muscovite, Quartz


Schorl : [Na][Fe2+3][Al6][(OH)3|OH|(BO3)3|Si6O18], Muscovite : KAl2[(OH)2|AlSi3O10], Quartz : SiO2

Photo Copyright © Arthur J Koch  - This image is copyrighted. Unauthorized reproduction prohibited.
Schorl on/in Muscovite on Quartz; crystal 2.6 cm x 0.2 cm, matrix 4.6 cm long; collector/photographer Arthur Koch

Part of my NC collection, this is a good example of the intergrowth between the schorl tourmaline and muscovite that can be found at the mine and other locales in the North Carolina mountains.

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