An eclogite occurrence near Healdsburg.
Mineralization is hosted in rocks of the Franciscan complex (eclogite affected by blueschist facies retrograde metamorphism).
References
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 177.
Armstrong, L.S., Page, F. Zeb, and Essene, E.J. (2004), Two Generations of Sphene in One Garnet from a Franciscan Eclogite, Healdsburg, California; 2004 Denver Annual Meeting (November 7–10, 2004) Geological Society of America Paper No. 50-9.
External Links
http://gsa.confex.com/gsa/2004AM/finalprogram/abstract_78888.htmMineral List
14 entries listed. 11 valid minerals.
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