chalcotrichite

chalcotrichite

[‚kal·kō′tri‚kīt]
(mineralogy)
A capillary variety of cuprite occurring in long needlelike crystals. Also known as hair copper; plush copper ore.
References in periodicals archive ?
569*** Cuprite, chalcotrichite, Bisbee, Arizona, no.
On the China Section's back page it should be mentioned that the specimens of cuprite variety chalcotrichite from the Daye mining area, seen very sparingly around the show, give promise of things to come that might rival Bisbee's achievement in the chalcotrichite line.