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Magnesite from
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


Locality type:Mine
Classification
Species:Magnesite
Formula:MgCO3
Comments:Occurs as euhedral crystals in a narrow vein.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Magnesite data
Locality Data:Click here to view 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
Data Identifiers
Mindat Occurrence Record ID:677259
Long-form Identifier:1:3:677259:8
GUID (UUID V4):0
Nearest other occurrences of Magnesite
3.7km (2.3 miles) ⓘSmith prospect (Smith property), Edenvale, San Jose, Santa Clara County, California, USA
10.7km (6.6 miles) ⓘBradford Ranch Mine, Mt Misery, Coyote Mining District, Santa Clara County, California, USA
13.6km (8.4 miles) ⓘW. W. Burnett Ranch prospect, Coyote, Coyote Mining District, Santa Clara County, California, USA
18.2km (11.3 miles) ⓘO'Connell Mine (Greenwalls property; O'Connell Ranch Mine; O'Connell Number 1; Greenwalt), Coyote, Coyote Mining District, Santa Clara County, California, USA
24.3km (15.1 miles) ⓘO'Connell Brothers Mine, Cochrane Ranch (Cochran Ranch) area, Cochrane Ranch (Cochran Ranch; Jackson Ranch), Morgan Hill, Santa Clara County, California, USA
24.5km (15.2 miles) ⓘAnderson Lake, Cochrane Ranch (Cochran Ranch) area, Cochrane Ranch (Cochran Ranch; Jackson Ranch), Morgan Hill, Santa Clara County, California, USA
28.3km (17.6 miles) ⓘCochrane prospect, Cochrane Ranch (Cochran Ranch) area, Cochrane Ranch (Cochran Ranch; Jackson Ranch), Morgan Hill, Santa Clara County, California, USA
33.6km (20.9 miles) ⓘHayes Ranch deposit, Mendenhall Springs, Livermore Mining District (Tesla District), Alameda County, California, USA
35.1km (21.8 miles) ⓘUnnamed Magnesite occurrence [1], Sugarloaf Butte, Cedar Mountain Mining District, Alameda County, California, USA
35.7km (22.2 miles) ⓘStandard Magnesite Company Mine, Cedar Mountain, Cedar Mountain Mining District, Alameda County, California, USA
References
Rogers, Austin F. (1923) Euhedral magnesite crystals from San Jose, California. American Mineralogist, 8 (8) 138-140
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 249.
 
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