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Ward Creek (1), Cazadero, Coast Range, Sonoma Co., California, USA

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Latitude & Longitude (WGS84): 38° 32' 20'' North , 123° 5' 44'' West
Latitude & Longitude (decimal): 38.5388888889, -123.095555556

An occurrence in the NE¼ sec. 17, T8N, R11W, MDM, on Ward Creek about 1.2 km WNW of Cazadero.

NOTE: Coordinates provided are approximate to the center of sec. 17.

Mineral List

17 valid minerals.

The above list contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


Borg, Iris Y. (1956), Glaucophane schists and eclogite near Healdsburg, California: Geological Society of America Bulletin 67: 1563-1584.

Coleman, R.G. & D.E. Lee (1963), Glaucophane-bearing metamorphic rocks of the Cazadero area, California: Journal of Petrology: 4: 260.

Lee, Donald Edward, Coleman, R.G., Bastron, H., and Smith, V.C. (1966) A two amphibole glaucophane schist in the Franciscan formation, Cazadero area, California. USGS Professional Paper 550-C: 148, 149, 153, 154.

Essene, E.J. and W.S. Fyfe (1967) Omphacite in California metamorphic rocks. Contributions to Mineralogy and Petrology: 15, 23 pp.: 4.

Coleman, R.G. & J.J. Papike (1968), Alkali amphiboles from the blueshchists of Cazadero, California: Jour. Petr.: 9: 109, 111, 113-118.

Himmelberg, G.R. and Papike, J.J. (1969) Coexisting amphiboles from blueschist facies metamorphic rock. Journal of Petrology: 10: 104-113.

Klein, C. (1969) Two-amphibole assemblages in the system actinolite-hornblende-glaucophane. American Mineralogist: 54: 221, 225.

Wood, R. W. (1979) The iron-rich blueschist facies minerals: 2. Howieite. Mineralogical Magazine 43:363-370.

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 171, 394, 399, 402, 404, 476, 484.

Oh, C. W., Liou, J. G. and Maruyanma, S. (1991). Low-temperature eclogites and eclogitic schists in Mn-rich metabasites in Ward Creek, California; Mn and Fe effects on transition between blueschist and eclogites. Journal of Petrology: 32: 275-301.

DHZ, Vol. 2B, 2nd ed., p. 755.

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