Vote for your favorite mineral in #MinCup26! - Hafnon vs. Putnisite
It's a pair of tiny minerals of unusual chemistry as orange Hafnon battles with purple Putnisite.
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Serpentine Subgroup from
Winship Mine, Red Mountain, Black Wonder Mining District, Santa Clara County, California, USA


Locality type:Mine
Classification
Species:'Serpentine Subgroup' (not an IMA approved species)
Formula:D3[Si2O5](OH)4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Serpentine Subgroup data
Locality Data:Click here to view Winship Mine, Red Mountain, Black Wonder Mining District, Santa Clara County, California, USA
Data Identifiers
Mindat Occurrence Record ID:1214493
Long-form Identifier:1:3:1214493:6
GUID (UUID V4):0
Nearest other occurrences of Serpentine Subgroup
1.8km (1.1 miles) ⓘRed Mountain Mine, Red Mountain, Black Wonder Mining District, Stanislaus County, California, USA
2.1km (1.3 miles) ⓘWestern Magnesite Company Mine, Red Mountain, Black Wonder Mining District, Santa Clara County, California, USA
3.2km (2.0 miles) ⓘBlack Bart Mine group, Red Mountain, Black Wonder Mining District, Stanislaus County, California, USA
5.3km (3.3 miles) ⓘLucky Girl Mine (Stanislaus Mine), Black Mountain, Black Wonder Mining District, Stanislaus County, California, USA
5.8km (3.6 miles) ⓘPlatner prospect, Red Mountain, Black Wonder Mining District, Stanislaus County, California, USA
6.1km (3.8 miles) ⓘNumber Five group (Number 5 group; No. 5 Mine; Mineral Products Company property), Copper Mountain, Black Wonder Mining District, Stanislaus County, California, USA
6.4km (4.0 miles) ⓘAdobe Canyon group deposits (McGuire et al. deposits; McGuire Holbrook and Springer Lea; Southeast; Mountain View Mine; Mountain View claim; Gray Fox claim), Copper Mountain, Black Wonder Mining District, Stanislaus County, California, USA
6.4km (4.0 miles) ⓘAntonia claim, Black Mountain, Black Wonder Mining District, Santa Clara County, California, USA
8.0km (5.0 miles) ⓘBlack Mike Mine (Black Point Mine; Black Rock Mine), Black Mountain, Black Wonder Mining District, Stanislaus County, California, USA
17.9km (11.1 miles) ⓘSugarloaf Butte, Cedar Mountain Mining District, Alameda County, California, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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