klockmannite Min.
(ˈklɒkmænaɪt)
[ad. G. klockmannit (P. Ramdohr 1928, in Centralbl. f. Mineral. a. 226), f. the name of F. F. H. Klockmann (1858–1937), Ger. mineralogist: see -ite1.]
A slate-grey selenide of copper, CuSe, found impure as granular aggregates and synthesized as crystal plates.
| 1939 Mineral. Mag. XXV. 295 Another copper selenide from the same locality [sc. Sierra de Umango, Argentina] has since been named klockmannite. 1969 Acta Crystallogr. XV b.2420 (heading) Twinning in the superlattice structure of CuSe, synthetic klockmannite. |