Coldwellite
Coldwellite is an IMA-recognized mineral species in the sulfide class, with the chemical formula Pd₃Ag₂S.
Key properties: specific gravity 9.9; Metallic luster.
IMA symbol Cwl, IMA status: approved, named in 2014.
Found in a heavy-mineral concentrate from a Cu-PGE-Au deposit, disseminated in gabbro.
It is found associated with Au-Ag alloy, hollingworthite, isoferroplatinum, keithconnite, kotulskite, mertieite-II, michenerite, palladoarsenide, sobolevskite, sperrylite, stillwaterite.
The name is derived from the locality (Coldwell alkaline complex) that produced the first specimens.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
Browse more C minerals or help write this entry.