In hydrothermal deposits formed at moderate temperatures but also found in contact metasomatic replacements, and epithermal replacements as well as in pegmatites.
IMA Status:
Approved IMA 1970
Locality:
Deer Park, Stevens County, Washington, USA. Link to MinDat.org Location Data.
Name Origin:
Named for the composition, Cobalt and STIBium (Latin name for Antimony).