Kasota limestone

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.

Kasota stonework detail in the Minnesota State Capitol

Buildings

References

  1. "333 W STATE ST". Wisconsin Historical Society. January 2012.
  2. "Yale University Library Gazette special issue on The Sterling Memorial Library, Volume V, Number 4 (April 1931)". Wisconsin Historical Society. January 2012.
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