Kasota limestone or simply, Kasota stone, also called Mankato stone, is a
dolomitic limestone found in southern
Minnesota, especially near the
Minnesota River and its tributaries. This
sedimentary rock is part of the
Oneota Dolomite of southern Minnesota and is approximately 450 million years old (lower
Ordovician Period). This particular limestone is rich in
dolomite and
magnesium, making it resistant to weathering, and it is thus widely used as a
building material. Its name is taken from
Kasota Township where the stone has been quarried.
Minnesota State University, Mankato, most of the buildings on the original Wilson campus (Main in 1869) and the Highland campus, including the new campus signs, Preska and Sears Halls.
"Kasota Building" Minneapolis (Gateway District). The building was demolished in an Urban Renewal act during the late 1950s.