umangite

(juːˈmæŋɡaɪt)

(Minerals) a copper selenide mineral, Cu3Se2, having a dark blue or red colour and metallic lustre

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

References in periodicals archive ?

From the SEM images, first 10 hours' time CIS and umangite ([Cu.sub.3][Se.sub.2]) were observed at 1-2 micron size; at 20 hours' time reaction plate-like shape CIS was observed similar to reported by Gu et al.

Synthesis of CIS (CuIn[Se.sub.2]) Based Materials for Solar Applications

Associated minerals are: berzelianite, bellidoite, cadmoseite (mercurian and cuprian), chameanite, crookesite, eskebornite, eucairite, ferroselite, hakite, klockmannite, a luanheite-type phase, trogtalite-krutaite, tiemannite, tyrellite, umangite and uraninite.

Abstracts of new mineral descriptions

From the type locality of the copper selenide berzelianite, Skrikerum in southeastern Sweden, several selenium-bearing minerals have been newly identified: athabascaite, bukovite, umangite and chalcomenite are the additional phases.