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Opal-AN from
Maple Lode Mine (Maple claim), Aguanga Mountain, Oak Grove, Aguanga Mountain Mining District (Smith Mountain Mining District), San Diego County, California, USA

Locality type:Mine
Classification
Species:Opal var: Opal-AN
Formula:SiO2 · nH2O
Comments:Hyalite was observed to be coating quartz and feldspar crystals on the walls of a small vug discovered in the early 1990's by D. Bernstein of Century City.
Confirmation
Validity:Believed Valid
References
References:Cordova, E. M. 2009. Personal communication with S. L. Ritchie, SDMC, Feb.
Data
Mineral Data:Click here to view Opal-AN data
Locality Data:Click here to view Maple Lode Mine (Maple claim), Aguanga Mountain, Oak Grove, Aguanga Mountain Mining District (Smith Mountain Mining District), San Diego County, California, USA
Nearest other occurrences of Opal-AN
17.4km (10.8 miles) Victor Mine (Big Buck mine; Big Buck prospect), Rincon Mountain, Rincon, Rincon Mining District, San Diego County, California, USA
96.6km (60.0 miles) Commercial Quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Riverside Co., California, USA
 
Mineral and/or Locality  
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