Cowlesite

Cowlesite is 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
Cowlesite
General
CategoryZeolite minerals
Formula
(repeating unit)
Ca(Al2Si3)O10·5-6H2O
Strunz classification8/J.24-10
Crystal systemOrthorhombic
Identification
ColourColourless, White
Mohs scale hardness5-5.5
LusterVitreous

References

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