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MINERALOGY

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Mineral: FLUORDRAVITE
Name: Fluor-dravite
Formula: NaMg3Al6(Si6O18)(BO3)3(OH)3F
Crystal System: Rhombohedral (Trigonal)
Group: Tourmaline group
IMA Number: 2009-089
References: Rocks and Min. 83 (2008), 320; CM 49 (2011), 57; AM 96 (2011), 895
Type Locality: Crabtree Emerald mine, Mitchell County, North Carolina, USA

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