Yooperlite
Sodalite-syenite
A variety of Syenite
What is Yooperlite?
Yooperlite is a unique and visually stunning variety of sodalite-rich syenite rocks found primarily around the Great Lakes region, particularly in Michigan's Upper Peninsula, hence the name derived from "Yooper" which refers to residents of Michigan's Upper Peninsula. This rock gained popularity and intrigue due to its ability to fluoresce under ultraviolet (UV) light.
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Yooperlite Localities Map
See where Yooperlite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Key Characteristics
Composition of Yooperlite
Alkali Feldspar Group, Sodalite, Hornblende, Biotite
Quick Facts
Physical Properties
- Color
- Gray, orange, black, white, pink, blue-purple, etc.
- Hardness (Mohs)
- 5.5 - 6.5
- Density
- 2.27 - 2.75 g/cm³
- Streak
- White
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