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Nesquehonite from
Arroyo Mocho, Diablo Range, Alameda Co., California, USA

Formula:MgCO3 · 3H2O
Comments:Powdery films on stream banks and at the water line.
Validity:Believed Valid
References:O’Neil, J.R. and Barnes, I. (1971) C13 and O18 compositions in some fresh-water carbonates associated with ultramafic rocks and serpentinites; western United States. Geochimica et Cosmochmica Acta: 35: 695; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 203.
Mineral Data:Click here to view Nesquehonite data
Locality Data:Click here to view Arroyo Mocho, Diablo Range, Alameda Co., California, USA
Nearest other occurrences of Nesquehonite
51.8km (32.2 miles) A Fort Point, San Francisco, San Francisco Co., California, USA
53.7km (33.3 miles) B Nesquehonite occurrence, Adobe Creek (Adobe Canyon), Black Wonder District, Diablo Range, Stanislaus Co., California, USA
151.2km (93.9 miles) C East Fork Big Austin Creek, Venado, Coast Range, Sonoma Co., California, USA
208.9km (129.8 miles) D Los Burros Creek, Burro Mountain, Los Burros District, Santa Lucia Mts (Santa Lucia Range), Monterey Co., California, USA
Mineral and/or Locality  
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