Grandidierite : (Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
Mindat locality:
Photo added to mindat.org
“Grandidierite partly embedded in "clay" on Quartz.
Labeled: Grandidierite, Quartz and Hibonite (not verified) from Port Dauphin.
Helicon Focus stack. sw.
Collection and photo A. Zordan.”
Antonio Zordan - 6th April 2016
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