Ortonville granite

Description

A biotite granite with medium to coarse grains quarried near Ortonville in Big Stone County, Minnesota. Ortonville granite has a deep red color with black and gray spots. It polishes well and is used for interior and exterior of buildings.

Synonyms and Related Terms

varitone mahogany granite; Richmond Red

Authority

• Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996

• Frank A. Lent, Trade names and Descriptions of Marbles, Limestones, Sandstones, Granites and Other Building Stones Quarried in the United States Canada and other Countries., Stone Publishing Co, New York, 1925