Locality type: | Mining District |
Classification |
---|
|
Species: | Opal |
Formula: | SiO2 · nH2O |
Comments: | Nearly amorphous to beta-cristobalite type. |
Confirmation |
---|
|
Validity: | Believed Valid |
Data |
---|
|
Mineral Data: | Click here to view Opal data |
Locality Data: | Click here to view East Mayacmas Mining District, Lake County, California, USA |
Data Identifiers |
---|
|
Mindat Occurrence Record ID: | 668815 |
Long-form Identifier: | 1:3:668815:8 |
GUID (UUID V4): | 6ef70241-fd83-4865-aa26-e56a1c52a555 |
Localities for Opal in this Region |
---|
|
Helen Mine (Helen Mine group; Dead Broke Mine; American Mine), Castle Rock Springs, East Mayacmas Mining District, Lake County, California, USA |
Great Western Mine (Laguna Western; Black Bart Mine; Tucker lease), Great Western-Mirabel group, Middletown, East Mayacmas Mining District, Lake County, California, USA |
References |
---|
|
|