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Quartz from
J. M. MacDonough Ranch Mine, Portola Valley, San Mateo County, California, USA


Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view J. M. MacDonough Ranch Mine, Portola Valley, San Mateo County, California, USA
Data Identifiers
Mindat Occurrence Record ID:1208046
Long-form Identifier:1:3:1208046:1
GUID (UUID V4):0
Nearest other occurrences of Quartz
4.3km (2.6 miles) ⓘSharon Park Drive outcrop, Sharon Heights, Menlo Park, San Mateo County, California, USA
8.3km (5.2 miles) ⓘChallenge deposit, Redwood City, San Mateo County, California, USA
10.3km (6.4 miles) ⓘDurham Ranch Mine, Lobitos, San Mateo County, California, USA
21.5km (13.4 miles) ⓘPescadero Beach Mine, Pescadero, San Mateo County, California, USA
26.2km (16.3 miles) ⓘDennison Creek Mine (Deniston Peak Mine; Half Moon Bay), El Granada, San Mateo County, California, USA
31.9km (19.9 miles) ⓘLa Vista Quarry, Hayward, Alameda County, California, USA
33.1km (20.6 miles) ⓘLone Hill Quarry (Mirasson Brothers Quarry), Lone Hill, San Jose, Santa Clara County, California, USA
33.7km (20.9 miles) ⓘSouth San Francisco Land & Improvement Company Mine, South San Francisco, San Mateo County, California, USA
35.2km (21.9 miles) ⓘHillsdale Mine (Chaboya-Hillsdale Mine; San Juan Bautista Mine; San Juan Mine; San Juan Quicksilver Mine; Sheboya Mine; Chapman Mine; Oak Hill Mine), Oak Hill, San Jose, Santa Clara County, California, USA
36.0km (22.4 miles) ⓘGuadalupe Mine, New Almaden, New Almaden Mining District, Santa Clara County, California, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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