Color: farblos, grün, gelb, rot, gelbgrün, weiß, schwarz, schwarzgrün
Streak color: weiß
Diaphaneity (Transparency): transparent References: Irina O. Galuskina, Luisa Ottolini, Milen Kadiyski, Thomas Armbruster, Evgeny V. Galuskin, Piotr Dzierzanowski, Antoni Winiarski: Pertsevite-(OH), a new mineral in the pertsevite series, Mg2(BO3)1–x(SiO4)x(F,OH)1–x (x < 0.5), from the Snezhnoye deposit in Sakha-Yakutia Republic, Russia. American Mineralogist 95 (2010) S.953-958.
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