Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Serpentine Subgroup from
Perkins Canyon prospect [1], North Peak, Mount Diablo (Mt Diablo), Clayton, Contra Costa County, California, USA


Locality type:Prospect
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 Perkins Canyon prospect [1], North Peak, Mount Diablo (Mt Diablo), Clayton, Contra Costa County, California, USA
Data Identifiers
Mindat Occurrence Record ID:1209431
Long-form Identifier:1:3:1209431:2
GUID (UUID V4):0
Nearest other occurrences of Serpentine Subgroup
0.0km (0.0 miles) ⓘUnnamed Asbestos prospect [2], North Peak, Mount Diablo (Mt Diablo), Clayton, Contra Costa County, California, USA
2.3km (1.4 miles) ⓘMount Diablo Mine, Mount Diablo (Mt Diablo), Clayton, Contra Costa County, California, USA
3.6km (2.2 miles) ⓘUnnamed Asbestos prospects [1] (Prospects East of Russellman), North Peak, Mount Diablo (Mt Diablo), Clayton, Contra Costa County, California, USA
7.3km (4.6 miles) ⓘArroyo Del Carro prospect, Clayton, Contra Costa County, California, USA
35.1km (21.8 miles) ⓘHastings Mine, Sulfur Springs Mountain, Vallejo, Solano County, California, USA
39.6km (24.6 miles) ⓘSt. Johns Mine (St. John Mine; Vallejo Mine; St. Johns Quicksilver Mine), Sulfur Springs Mountain, Vallejo, Solano County, California, USA
43.2km (26.8 miles) ⓘCedar Mountain Magnesite Mine, Cedar Mountain, Cedar Mountain Mining District, Alameda County, California, USA
44.1km (27.4 miles) ⓘMendenhall No. 1 Mine (Cedar Mountain Mine; Mendenhall Chrome Mines; Mendenhall Mine; Newman Mine), Cedar Mountain, Cedar Mountain Mining District, Alameda County, California, USA
44.2km (27.5 miles) ⓘJones prospect, Lookout Point, Cedar Mountain Mining District, Alameda County, California, USA
45.8km (28.5 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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