occurs in Ngusa and Kobokobo, Congo. In England, it can be found at Wheal Owles, Levant mine, Phoenix mines, Restormel Royal Iron Mine, and in the Gunheath China clay pit. In Germany, it can be found from a dump on the Roter Berg, in Namibia at the Rubicon mine, and in China from an undefined deposit. References Trigonal minerals Trigonal crystal system Trigonal crystals