Occurrence near Shadow Lake

outcrops of asbestos in Madera county, CA

Geologic information

Name of siteOccurrence near Shadow Lake
Geographic location:-119.125, 37.697
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Fibrous mineralDark blades and needles of piedmontite, embedded in quartz and associated with white, fibrous tremolite"" (Short, 1933, p. 494)
Associated mineralspiedmontite
Host rock typesschistose volcanic rocks
Geologic map unit-119.125, 37.697
Nearby scientific dataFind additional scientific data near this location

Reference information

Short, A.M., 1933, A chemical and optical study of piedmontite from Shadow Lake, Madera County, California: American Mineralogist, v. 18, no. 11, p. 493-500.
Keskinen, Mary, 1981, Petrochemical investigation of the Shadow Lake piemontite zone, eastern Sierra Nevada, California: American Journal of Science, v. 281, no. 7, p. 896-921.