As coatings on fine-grained sphalerite and siderite in vugs' probably of secondary origin, deposited from meteoric waters in vugs and along late fractures.
IMA Status:
Valid Species (Pre-IMA) 1955
Locality:
In Canada, in the Hector-Calumet mine, Keno-Galena Hill area, Yukon Territory. Link to MinDat.org Location Data.
Name Origin:
For Professor James Edwin Hawley (1897-1965), Canadian mineralogist, Queen's University, Kingston, Ontario, Canada.
Chemical Formula: 