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Opal from
Knoxville, Knoxville Mining District, Napa County, California, USA


06247290017272735404742.jpg
Opal

McLaughlin Mine, Knoxville, Knoxville Mining District, Napa County, California, USA
08581010017362255226180.jpg
Opal

McLaughlin Mine, Knoxville, Knoxville Mining District, Napa County, California, USA
07057090017271929396737.jpg
Lemon Opal

McLaughlin Mine, Knoxville, Knoxville Mining District, Napa County, California, USA
09043320017845056395052.jpg
Opal

McLaughlin Mine, Knoxville, Knoxville Mining District, Napa County, California, USA
06247290017272735404742.jpg
Opal

McLaughlin Mine, Knoxville, Knoxville Mining District, Napa County, California, USA
08581010017362255226180.jpg
Opal

McLaughlin Mine, Knoxville, Knoxville Mining District, Napa County, California, USA
05598470017362255237445.jpg
Lemon Opal

McLaughlin Mine, Knoxville, Knoxville Mining District, Napa County, California, USA
09323390017847874933420.jpg
Opal

McLaughlin Mine, Knoxville, Knoxville Mining District, Napa County, California, USA
01611470017272735416957.jpg
Opal

McLaughlin Mine, Knoxville, Knoxville Mining District, Napa County, California, USA
04292560017362255249796.jpg
Opal

McLaughlin Mine, Knoxville, Knoxville Mining District, Napa County, California, USA
07057090017271929396737.jpg
Lemon Opal

McLaughlin Mine, Knoxville, Knoxville Mining District, Napa County, California, USA
09043320017845056395052.jpg
Opal

McLaughlin Mine, Knoxville, Knoxville Mining District, Napa County, California, USA
Classification
Species:Opal
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz2
Data
Mineral Data:Click here to view Opal data
Locality Data:Click here to view Knoxville, Knoxville Mining District, Napa County, California, USA
Data Identifiers
Mindat Occurrence Record ID:987709
Long-form Identifier:1:3:987709:2
GUID (UUID V4):0
Localities for Opal in this Region
McLaughlin Mine (Manhattan Mine), Knoxville, Knoxville Mining District, Napa County, California, USA
Redington Mine (Boston Mine; Knoxville Mine; Excellsior Mine), Knoxville, Knoxville Mining District, Napa County, California, USA
Nearest other occurrences of Opal
0.3km (0.2 miles) ⓘRedington Mine (Boston Mine; Knoxville Mine; Excellsior Mine), Knoxville, Knoxville Mining District, Napa County, California, USA
2.4km (1.5 miles) ⓘMcLaughlin Mine (Manhattan Mine), Knoxville, Knoxville Mining District, Napa County, California, USA
7.5km (4.7 miles) ⓘAdams and Westendorf claims, Knoxville area, Napa County, California, USA
17.8km (11.1 miles) ⓘBaker Mine, Lower Lake, Sulphur Creek Mining District (Sulfur Creek Mining District; Wilbur Springs Mining District), Lake County, California, USA
23.3km (14.4 miles) ⓘAbbott Mine (Abbott Quicksilver Mine), Wilbur Springs area, Sulphur Creek Mining District (Sulfur Creek Mining District; Wilbur Springs Mining District), Lake County, California, USA
23.7km (14.7 miles) ⓘWide Awake Mine, Cherry Hill deposit, Wilbur Springs, Sulphur Creek Mining District (Sulfur Creek Mining District; Wilbur Springs Mining District), Coast Ranges, Colusa County, California, USA
24.4km (15.2 miles) ⓘCavagnaro prospect, Calistoga Hot Springs, Napa County, California, USA
24.7km (15.4 miles) ⓘCorona Mines (Vallejo Mines), Twin Peaks, Calistoga, Napa County, California, USA
26.2km (16.3 miles) ⓘPlymouth Mine, Calistoga Hot Springs, Napa County, California, USA
28.1km (17.4 miles) ⓘElgin Mine, Wilbur Springs, Sulphur Creek Mining District (Sulfur Creek Mining District; Wilbur Springs Mining District), Coast Ranges, Colusa County, California, USA
References
Rocks&Min 11(8):117
 
and/or  
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