Mindat Short Description
Pyrite Group.
S-rich variety was once functioning in the systematics as a separate species - 'platarsite' (now discredited).
Geoscience Ontology Status Notes
Wells H L (1889) Sperrylite, a new mineral, American Journal of Science 137, 67-70
IMA Formula (from Mindat)
PtAs2
RRUFF Formula (from Geoscience Ontology)
PtAs2