Formula: CaBi(CO3)OF Orthorhombic
Kettnerite is a very rare mineral found as an alteration product of bismuth sulfides, such as bismuthinite.
DODGE COUNTY: Kettnerite occurs as tiny crystals associated with other bismuth-bearing minerals in vugs in pegmatite cutting quartzite in the Michels Materials Waterloo Quarry, NE sec. 33 and NW sec. 34 T.9N. R.13E. (Buchholz et al. , 2005b).