Coiraite, Sphalerite, Pyrite
Oploca Vein System, San Miguel Open pit, Pirquitas Mine, Mina Pirquitas, Rinconada Department, Jujuy Province, Argentina
Reflected light digital image of tangled masses of arborescent coiraite with minor pyrite (white) and sphalerite (grey).
Horizontal field about 200 microns.
Type specimen: BM 2008, 47
[see paper by Paar W H et al. 2008. Mineralogical Magazine Volume 72: 1083-1101]
© Natural History Museum