Outstanding specimens of several sulfide minerals from the Merelani tanzanite deposit have recently become available, including rare wurtzite in giant, deep red-brown, partially gemmy, well-formed crystals, lustrous black alabandite and form-rich pyrite with exceptional luster. Other sulfides identified include sphalerite, chalcopyrite, millerite, stannite, tennantite-tetrahedrite, sharp microcrystals of clausthalite and rare colusite-germanocolusite.