Item talk:Q162586
From geokb
Mindat Short Description
Pearceite-Polybasite series.
Originally pearceite was thought to be an arsenic analogue of polybasite. "Arsenpolybasite" was, however, found to represent two different polytypes of pearceite, pearceite-T2ac and pearceite-M2a2b2c.
Pearceite form...
Geoscience Ontology Status Notes
Penfield S L (1896) On pearceite, a sulpharsenite of silver and on the crystallization of polybasite, American Journal of Science 152, 17-29 Redefined: Bindi L, Evain M, Spry P G, Menchetti S (2007) The pearceite-polybasite group of minerals: crystal chemistry and new nomenclature rules, American Mineralogist 92, 918-925
IMA Formula (from Mindat)
[Ag9CuS4][(Ag,Cu)6(As,Sb)2S7]
RRUFF Formula (from Geoscience Ontology)
Cu(Ag,Cu)6Ag9As2S11
