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MINERALOGY

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Mineral: CHROMIUMDRAVITE
Name: Chromium-dravite
Formula: NaMg3Cr6(Si6O18)(BO3)3(OH)3OH
Crystal System: Rhombohedral (Trigonal)
Group: Tourmaline group
IMA Number: 1982-055
References: ZVMO 112 (1983), 222; HB2/1 (1995); AM 96 (2011), 895; Minerals 9 (2019), 398
Type Locality: Velikaya Guba uranium occurrence, Zaonezhskiy Peninsula, Karelia, Russia

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