Dolomite (Tooele) is a limestone quarry located just south of I-80 42.10 miles (67.75 km) west of Salt Lake City on what was part of the Western Pacific Ellerbeck/Dolomite branch line.
Nearby town are Grantsville 9.9 miles (15.932 km) southeast and Tooele 21.4 miles (34.439 96 km) to the southeast.
Dolomite is a carbonate mineral composed of calcium magnesium carbonate CaMg(CO3)2. It occurs in a white, translucent hexagonal crystal system and is use in building and construction industry for its hardness and density.
G. William Wiersdorf
See: Specialty Minerals; Wikipedia.