Wisconsin Geological Society

Red granite became the state rock in
              1971. Granite is an igneous rock made up of a variety of
              minerals -- typically quartz, feldspar, mica, and
              hornblende. Granite is commonly used as a building and
              decorative stone.

Thanks for Attending the
2017 Gem, Mineral, and Fossil Show

Please join us next year 5/19/18 & 5/20/18 for the 61st annual Wisconsin Geological Society Gem, Mineral, and Fossil show.

Click here for a printable version of our 2017 show flyer

Wisconsin State Mineral
Adopted: March 9, 1971 The Kenosha Gem and Mineral Society, to promote geological awareness, introduced the proposal for Wisconsin to adopt a mineral. Galena was chosen because of its immense role in Wisconsin's history and economy. After all Galena (lead) was what first attracted European settlers to Wisconsin.