Cowlesite

Cowlesite is a mineral named after American mineralogist John Cowles. W.S. Wise and Rudy W. Tschernich first described it 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
IMA symbolCow[1]
Strunz classification8/J.24-10
Crystal systemOrthorhombic
Identification
ColourColourless, White
Mohs scale hardness5-5.5
LusterVitreous

References

  1. Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.


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