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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Psilomelane from
Arnold prospect, Dew Drop, Nevada County, California, USA


Locality type:Prospect
Classification
Species:'Psilomelane' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Psilomelane data
Locality Data:Click here to view Arnold prospect, Dew Drop, Nevada County, California, USA
Data Identifiers
Mindat Occurrence Record ID:329859
Long-form Identifier:1:3:329859:6
GUID (UUID V4):0
Nearest other occurrences of Psilomelane
1.9km (1.2 miles) ⓘSanto prospect, Dew Drop, Nevada County, California, USA
2.8km (1.8 miles) ⓘManga-Chrome Mine (Manga Chrome; Magna-Chrome Mine; Duggan Mine; Steams and Owens [?]), Limekiln, Spenceville Mining District, Nevada County, California, USA
12.2km (7.6 miles) ⓘLloyd prospect, Weimar, Colfax Mining District (Illinois Mining District), Placer County, California, USA
15.7km (9.8 miles) ⓘGrass Valley Mining District, Nevada County, California, USA
18.3km (11.4 miles) ⓘRyan prospect (Ryan Bartholf & Veach; You Bet; Midway claim; Negro Heaven claim; Bluebird claim), You Bet (Chalk Bluffs), You Bet Mining District, Nevada County, California, USA
21.0km (13.0 miles) ⓘRandel claim No. 1 (American; Tilsley and Coplen claim; Tilsey & Coplen group [of WWI]), Yankee Jims, Forest Hill Mining District, Placer County, California, USA
21.2km (13.2 miles) ⓘGold Hill Mine (Crown Point Mine), Yankee Jims, Forest Hill Mining District, Placer County, California, USA
21.7km (13.5 miles) ⓘPettigrew-Stafford Mine (Pettigrew - Stafford lease; Gray lease), Yankee Jims, Forest Hill Mining District, Placer County, California, USA
30.3km (18.8 miles) ⓘDavid prospect, Georgetown, Georgetown District, East Segment Mother Lode, El Dorado County, California, USA
30.5km (18.9 miles) ⓘPaine Brothers Mine (Paine Bros; Paine Brs.; Paine), Lake City, North Bloomfield Mining District, Nevada County, California, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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