Item talk:Q162617
From geokb
Mindat Short Description
Pumpellyite Group. Julgoldite-(Fe2+)-Pumpellyite-(Mg) Series.
Geoscience Ontology Status Notes
Palache C, Vassar H E (1925) Some minerals of the Keweenawan copper deposits: pumpellyite, a new mineral; sericite; saponite, American Mineralogist 10, 412-418 Name changed from pumpellyite: Passaglia E, Gottardi G (1973) Crystal chemistry and nomenclature of pumpellyites and julgoldites, The Canadian Mineralogist 12, 219-223
IMA Formula (from Mindat)
Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
RRUFF Formula (from Geoscience Ontology)
Ca2MgAl2(SiO4)(Si2O7)(OH)2·H2O
