Bismuthinite fiber. SEM image. From Haske Quarry in Wood County, Wisconsin. (Photo by George Robinson, Michigan Tech.)

Formula: Bi2S3 Orthorhombicic


Bismuthinite is a rare mineral associated with hydrothermal veins in granitic envrionments.

WOOD COUNTY: Bismuthinite occurs as rare tiny fibers in calcite in veins cutting granite exposed in the Haske quarry in Sec. 25 T.24N. R.2E (Tom Buchholz, pers. comm.).