Charoite
Charoite K(Ca,Na)2Si4O10(OH,F)•H2O is a rare silicate mineral, first described in 1978. It was believed to be named after the Chara River, but due to the river being 70 km away from its discovery place, now it is believed to be named after the Russian word chary, meaning magic or charms. When it was discovered, it was thought to be a fake, dyed purple to give it its striking appearance.