| Locality type: | Mine |
| Classification |
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| Species: | Muscovite |
| Formula: | KAl2(AlSi3O10)(OH)2 |
| 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 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 |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1004278 |
| Long-form Identifier: | 1:3:1004278:6 |
| GUID (UUID V4): | 0f17d99a-93e8-43c6-95db-e908bcbc72de |
| Nearest other occurrences of Muscovite |
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| 0.2km (0.1 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 |
| 0.8km (0.5 miles) | ⓘGrass Valley Mining District, Nevada County, California, USA |
| 2.3km (1.4 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 |
| 2.4km (1.5 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 |
| 2.4km (1.5 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 (1.8 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 |
| 3.4km (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 |
| 3.9km (2.4 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 |
| 4.2km (2.6 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 |
| 4.6km (2.8 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 |
| References |
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