Arsenic from Grass Valley, Grass Valley Mining District, Nevada County, California, USA


USA
California Nevada County Grass Valley Mining District ⓘ Grass Valley
Alcalde Mine group (Alcade; Eclipse; Hidden Treasure; Accidental; Oxford; Diamond; Philadelphia; Stonewall Jackson; Johnson; Gould; Curry; South Curry; Indiana and South Standard claims) ⓘ Alcalde Mine (Bowery; Gould and Curry; Kenosha)	Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 85 Van Nostrand Reinholt Press: 51.
Empire Star group (Empire Star Mines Company holdings) ⓘ Empire Mine (Empire vein)	Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 85 Johnston, William Drumm (1940), The gold-quartz veins of Grass Valley, California: USGS PP 194, 101 pp.: 36 Johnston, William Drumm (1937), Native arsenic from Grass Valley, California: California Division Mines Report 33: 340 Van Nostrand Reinholt Press: 51.

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