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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Native Arsenic from
Empire Mine (Empire vein), Empire Star group (Empire Star Mines Company holdings), Grass Valley, Grass Valley Mining District, Nevada County, California, USA


Locality type:Mine
Classification
Species:Native Arsenic
Formula:As
Comments:Occurs on the 1600 foot level as botryoidal pieces with some free gold.
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Native Gold
Data
Mineral Data:Click here to view Native Arsenic data
Locality Data:Click here to view Empire Mine (Empire vein), Empire Star group (Empire Star Mines Company holdings), Grass Valley, Grass Valley Mining District, Nevada County, California, USA
Data Identifiers
Mindat Occurrence Record ID:602649
Long-form Identifier:1:3:602649:3
GUID (UUID V4):0
Nearest other occurrences of Native Arsenic
7.4km (4.6 miles) ⓘAlcalde Mine (Bowery; Gould and Curry; Kenosha), Alcalde Mine group (Alcade; Eclipse; Hidden Treasure; Accidental; Oxford; Diamond; Philadelphia; Stonewall Jackson; Johnson; Gould; Curry; South Curry; Indiana and South Standard claims), Grass Valley, Grass Valley Mining District, Nevada County, California, USA
References
Johnston, William Drumm (1937), Native arsenic from Grass Valley, California: California Division Mines Report 33: 340
Johnston, William Drumm (1940), The gold-quartz veins of Grass Valley, California: USGS PP 194, 101 pp.: 36
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 85
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
 
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