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Opal from
Grefco Mine, Buellton, Santa Barbara County, California, USA


Locality type:Mine
Classification
Species:Opal
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Opal data
Locality Data:Click here to view Grefco Mine, Buellton, Santa Barbara County, California, USA
Data Identifiers
Mindat Occurrence Record ID:1005166
Long-form Identifier:1:3:1005166:9
GUID (UUID V4):0
Nearest other occurrences of Opal
2.9km (1.8 miles) ⓘUnnamed Diatomite deposit, Las Cruces, Santa Barbara County, California, USA
4.2km (2.6 miles) ⓘPalos Colorados Quarry, Lompoc, Santa Barbara County, California, USA
5.2km (3.2 miles) ⓘGreat Lakes Carbon Corp. Mine, Lompoc, Santa Barbara County, California, USA
9.4km (5.8 miles) ⓘUnnamed Diatomite deposit [4], Lompoc, Santa Barbara County, California, USA
12.7km (7.9 miles) ⓘUnnamed Diatomite deposits [10], Buellton, Santa Barbara County, California, USA
13.0km (8.1 miles) ⓘUnnamed Diatomite deposits [7], Lompoc, Santa Barbara County, California, USA
13.2km (8.2 miles) ⓘJohns-Manville Quarries Mine (Balaam Mine; Sunnyside Mine), Lompoc, Santa Barbara County, California, USA
14.0km (8.7 miles) ⓘUnnamed Diatomite deposit [1], Solvang, Santa Barbara County, California, USA
15.0km (9.3 miles) ⓘSan Miguelito Canyon Road Diatomite outcrop, Lompoc, Santa Barbara County, California, USA
15.7km (9.7 miles) ⓘUnnamed Diatomite deposit [3], Lompoc, Santa Barbara County, California, USA
References
California Geology (1981): 185, figure 2 (September, 1981)
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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