Cowlesite
A variety of Minerals
What is Cowlesite?
Cowlesite is a mineral named after American mineralogist John Cowles. It was first described by W.S. Wise and Rudy W. Tschernich in material from roadcuts along Neer Road, Goble, Oregon, United States. The description also incorporated data from Superior, Arizona. It most often occurs as small colorless to white spheres in basalt, and is often associated with other zeolites.
Cowlesite Market Value Calculator
Estimate the market value of Cowlesite using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.
Cowlesite Localities Map
See where Cowlesite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Map preview
North ZoneCentral RidgeSouth Basin
Quick Facts
Physical Properties
- Color
- Colourless, White
- Hardness (Mohs)
- 5 - 5.5
- Streak
- White
Chemical Properties
- Chemical Formula
- CaAl2Si3O10 · 6H2O
- Elements
- Al, Ca, H, O, Si
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