Stibioclaudetite ASSB[O.sub.3] a new mineral from Tsumeb, Namibia: Stibioclaudetite has been found at the Tsumeb mine, Namibia, in bladed crystals to 6 mm association with leiteite, ludlockite, smithsonite and quartz. Previously identified specimens of claudetite from Tsumeb may well be stibioclaudetite instead

ABSTRACT Stibioclaudetite is a new mineral species with ideal chemistry [AsSbO.sub.3]. The mineral has monoclinic symmetry, [P2.sub.1]/n, with a = 4.5757(4) Å, b = 13.1288(13) Å, c = 5.4216(5) Å, [...]