| Locality type: | Mining District |
| Classification |
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| Species: | Muscovite |
| Formula: | KAl2(AlSi3O10)(OH)2 |
| Comments: | Occurs as a common vein mineral and an abundant constituent of wall rock of gold veins. |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Muscovite data |
| Locality Data: | Click here to view Grass Valley Mining District, Nevada County, California, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1004213 |
| Long-form Identifier: | 1:3:1004213:9 |
| GUID (UUID V4): | 2cde1de3-0ede-41e8-b63d-4f19e2515e74 |
| Localities for Muscovite in this Region |
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| Omaha Consolidated Mine (Omaha Cons.; Lone Jack Mine; Omaha vein), Empire West Mine (Lone Ridge), Empire Star group (Empire Star Mines Company holdings), Grass Valley, Grass Valley Mining District, Nevada County, California, USA |
| Gold Hill Quartz Mine (Gold Hill Mine; Gold Hill Qtz), Empire Star group (Empire Star Mines Company holdings), Grass Valley, Grass Valley Mining District, Nevada County, California, USA |
| Massachusetts Hill Quartz Mine (Massachusetts Hill Qtz; Rocky Bar Mine; Boston Ravine claim; Great Britain claim; New Rocky Bar claim; New York Hill claim; Polkinghorn claim; Rocky Bar claim; Stockbridge claim), Empire Star group (Empire Star Mines Company holdings), Grass Valley, Grass Valley Mining District, Nevada County, California, USA |
| New York Hill Mine (New York Hill vein; North Star vein), North Star group, Empire Star group (Empire Star Mines Company holdings), Grass Valley, Grass Valley Mining District, Nevada County, California, USA |
| Pennsylvania Mine [1] (Pennsylvania Consolidated Qtz; Pennsylvania-W.Y.O.D.; Pennsylvania vein; Pennsylvania-Wyod; Wyod), Empire Star group (Empire Star Mines Company holdings), Grass Valley, Grass Valley Mining District, Nevada County, California, USA |
| Sultana Mine (Electric Mine; Sultana-Orleans Mine), Empire Star group (Empire Star Mines Company holdings), Grass Valley, Grass Valley Mining District, Nevada County, California, USA |
| Golden Center Mine (Garage vein; Sleep vein; Church Hill vein), Golden Center group (Cabin Flat Mine; Rock Roche Mine; Dromedary Mine; Scotia Mine; Peabody Mine; Garage/Dromedary/Berriman/Peabody), Grass Valley, Grass Valley Mining District, Nevada County, California, USA |
| Golden Gate group (Golden Gate Gp; Kentucky & Alpha; Golden Gate; Golden Gate East and West; Dana claim; Christopher Columbus claim; Golden Gate claim; Alpha claim; Ismert Ranch claim), Grass Valley, Grass Valley Mining District, Nevada County, California, USA |
| Idaho-Maryland Mine (Idaho Maryland prospect; Maryland Mine; Howard Hill/Morning Dew; Idaho Maryland-Brunswick), Idaho-Maryland group, Grass Valley, Grass Valley Mining District, Nevada County, California, USA |
| Allison Ranch Quartz Mine (Allison Ranch Mine; Allison Ranch vein; Allison Ranch Qtz.; Crossus Consolidated Mine; Stanton Mine), La Barr Meadows, Grass Valley Mining District, Nevada County, California, USA |
| Diamond - Bullion - Alaska Mine group (Consolidated Bullion Mine; Diamond claim; Bullion claim; Alaska claim; Union Jack claim; Galena claim; Ione claim; Big Diamond vein; Galena-Bullion vein; Alaska vein), La Barr Meadows, Grass Valley Mining District, Nevada County, California, USA |
| Nearest other occurrences of Muscovite |
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| 0.8km (0.5 miles) | ⓘIdaho-Maryland Mine (Idaho Maryland prospect; Maryland Mine; Howard Hill/Morning Dew; Idaho Maryland-Brunswick), Idaho-Maryland group, Grass Valley, Grass Valley Mining District, Nevada County, California, USA |
| 1.0km (0.6 miles) | ⓘGolden Gate group (Golden Gate Gp; Kentucky & Alpha; Golden Gate; Golden Gate East and West; Dana claim; Christopher Columbus claim; Golden Gate claim; Alpha claim; Ismert Ranch claim), Grass Valley, Grass Valley Mining District, Nevada County, California, USA |
| 1.8km (1.1 miles) | ⓘSultana Mine (Electric Mine; Sultana-Orleans Mine), Empire Star group (Empire Star Mines Company holdings), Grass Valley, Grass Valley Mining District, Nevada County, California, USA |
| 2.0km (1.3 miles) | ⓘPennsylvania Mine [1] (Pennsylvania Consolidated Qtz; Pennsylvania-W.Y.O.D.; Pennsylvania vein; Pennsylvania-Wyod; Wyod), Empire Star group (Empire Star Mines Company holdings), Grass Valley, Grass Valley Mining District, Nevada County, California, USA |
| 2.5km (1.6 miles) | ⓘGolden Center Mine (Garage vein; Sleep vein; Church Hill vein), Golden Center group (Cabin Flat Mine; Rock Roche Mine; Dromedary Mine; Scotia Mine; Peabody Mine; Garage/Dromedary/Berriman/Peabody), Grass Valley, Grass Valley Mining District, Nevada County, California, USA |
| 3.0km (1.9 miles) | ⓘGold Hill Quartz Mine (Gold Hill Mine; Gold Hill Qtz), Empire Star group (Empire Star Mines Company holdings), Grass Valley, Grass Valley Mining District, Nevada County, California, USA |
| 3.3km (2.1 miles) | ⓘMassachusetts Hill Quartz Mine (Massachusetts Hill Qtz; Rocky Bar Mine; Boston Ravine claim; Great Britain claim; New Rocky Bar claim; New York Hill claim; Polkinghorn claim; Rocky Bar claim; Stockbridge claim), Empire Star group (Empire Star Mines Company holdings), Grass Valley, Grass Valley Mining District, Nevada County, California, USA |
| 3.5km (2.2 miles) | ⓘOmaha Consolidated Mine (Omaha Cons.; Lone Jack Mine; Omaha vein), Empire West Mine (Lone Ridge), Empire Star group (Empire Star Mines Company holdings), Grass Valley, Grass Valley Mining District, Nevada County, California, USA |
| 3.9km (2.4 miles) | ⓘDiamond - Bullion - Alaska Mine group (Consolidated Bullion Mine; Diamond claim; Bullion claim; Alaska claim; Union Jack claim; Galena claim; Ione claim; Big Diamond vein; Galena-Bullion vein; Alaska vein), La Barr Meadows, Grass Valley Mining District, Nevada County, California, USA |
| 4.0km (2.5 miles) | ⓘNew York Hill Mine (New York Hill vein; North Star vein), North Star group, Empire Star group (Empire Star Mines Company holdings), Grass Valley, Grass Valley Mining District, Nevada County, California, USA |
| References |
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| Reference Search (possible matching items) |
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 | | Report (issue) | | GEOLOGICAL SURVEY GOLD DEPOSITS OF THE WESTERN SIERRA NEVADA Field Trip Guide by Franklin C. W. Dodge 1 , Ralph...Economic Geologists Annual Meeting, Los Angeles, California February, 1984 Open-File Report 84-169 This...Menlo Park, California 2 California Division of Mines and Geology, Sacramento, California INTRODUCTION... INTRODUCTION The western foothills of the central Sierra Nevada have been the source of the bulk of California's...California's past gold production. Although gold mining decreased greatly in the years during and following World |  | | Catalog/List | | NW Corner of W. Airport Freeway (Hwy. 183) and Valley View Lane FLOOR Sessions 1-2 (Floor, Telephone...NW Corner of W. Airport Freeway (Hwy. 183) and Valley View Lane Monday, December 6 – Tuesday, December...NW Corner of W. Airport Freeway (Hwy. 183) and Valley View Lane Phone: 214-528-3500 877-HERITAGE (437-4824)...Crystallized Gold from the famed Eagle’s Nest Mine in California A superb Crystallized “Leaf” Gold specimen once...including: Alaska Canada Australia Nevada Brazil Romania California Venezuela This catalog proudly features |  | | Journal (volume) | | 4000 Salt Lake 3VHA مم • THE JOHNNIE MINING & MILLING COMPANY. - Illustrated . E rn lectre...lectre cel 2 Weste THE CROWN POINT GLOBE MINING COMPANY . - Illustrated .. سر/ SerT 19 CE W E VI ...Smelter Supply Co. SALT LAKE CITY , UTAH 2. THE MINING REVIEW , SALT LAKE CITY , UTAH , APRIL 15... IN the latter part of 1908 the Pioche Golden Mining Co., of Pioche, Nev ., bought of one g ofPrince...gThis week we sold to the Gold and Silver Prince Mining Company , bwhedosythe samepeople) of Pioche, Nev |  | | Journal (volume) | | strictly mforced.^&O D 2DD7 lEOOSIO California State Library CALIFORNIA STATE SACRAMr I LIBRARY. 2 4V...JANUARY Publishers. A of Pulley Turning Lathe. California Weather. The engraving given herewith represents...stay where it belongs on the other side of the California, even if there is a business boom in in these...ready made out the State. At Forest City, Sierra county, to be thankful for a good deal. The telegraph...eters A — To drift mining, a method by which hydrau- ready achieved mining operations are sometimes |  | | Journal (volume) | | PER ANNUM. 1900. Single CoploH,-Teu Ctmts. California Contribution. will 1)1' on vii'w at I'aris ami...Exposition.* G. Dodd, the superintendent of the mining departof the Union Iron Works, it will readily...Salt Spring Valley, Cal. • Between Bear mountain and Gopher Ridge, in Cala- ; veras county, Cal., ...from the vicinity of Copperopolis northwestward to Valley Spring. Bear mountain and Gopher Ridge are ley...greatly varying size. The gold-bearing quartz of the district is associated with these dykes, usually constituting |
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