RhodesiteTrinite Mining claim, Trinity Center, Trinity Co., California, USA
Photo: 2007, JGW Latitude: 41°0'50"N
Longitude: 122°36'9"W
An occurrence located in the SE¼SE¼ sec. 30, T37N, R6W, MDM, 6 miles E of relocated Trinity Center and ¼ mile E of the East Fork Trinity River.
Magadiite and other Na silicates formed in highly alkaline cold brine waters along a dacite contact and sheared talc-tremolite.
References
Eugster, H.P., F.J. Blair, and R.A. Sheppard (1967) New hydrous sodium silicates from Kenya, Oregon and California. Geological Society of America Abstract with Program, 60.
McAtee, J.L., House, R., and Eugster, H.P. (1968) Magadiite from Trinity County, California. American Mineralogist: 53: 2061-2069.
Sheppard, R.A. and Gude, A.J. (1969a) Rhodesite from Trinity County, California. American Mineralogist: 54: 251-255.
Barnes, I., J.B. Rapp & J.R. O’Neil (1972), Metamorphic assemblages and the direction of flow of metamorphic fluids in four instances of serpentinization: Contributions to Mineralogy and Petrology: 35: 264.
Gude, A.J. and Sheppard, R.A. (1972) Silhydrite, 3SiO2•H2O, a new mineral from Trinity County, California. American Mineralogist: 57: 1053-1065.
American Mineralogist (1975): 60: 642-649.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 357-358, 441, 442.
External Links
www.mineralsocal.org
Mineral List
7 entries listed. 7 valid minerals. 1 type locality (valid mineral).
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