Schorl
Specimen ID: D5R-FWW
Schorl : NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
Photo added to mindat.org
“Giant schorl crystal in the wall of mine in pegmatite vein No. 8. Photo taken by Ondra Stískal during summer expedition of Geological Youth Club (kamenet.cz). August 2014. ”
Aleš Tomek - 4th January 2015
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