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Tetrahedrite Subgroup from
Osborn Hill Mine (Osborn Hill vein; Woodberry Mine), Empire Star group (Empire Star Mines Company holdings), Grass Valley, Grass Valley Mining District, Nevada County, California, USA


Locality type:Mine
Classification
Species:'Tetrahedrite Subgroup' (not an IMA approved species)
Formula:Cu6(Cu4C22+)Sb4S12S
Comments:A heavy mass was found.
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Chalcopyrite
Sphalerite
Data
Mineral Data:Click here to view Tetrahedrite Subgroup data
Locality Data:Click here to view Osborn Hill Mine (Osborn Hill vein; Woodberry Mine), Empire Star group (Empire Star Mines Company holdings), Grass Valley, Grass Valley Mining District, Nevada County, California, USA
Data Identifiers
Mindat Occurrence Record ID:644198
Long-form Identifier:1:3:644198:2
GUID (UUID V4):0
Nearest other occurrences of Tetrahedrite Subgroup
6.9km (4.3 miles) ⓘBanner and Central Mine (Central Mine; Lava Cap Mine; Assissi Quartz Mine), Lava Cap-Banner-Central group (Central Consolidated; South Banner; North Banner), Banner Mountain (Banner Hill), Nevada City Mining District, Nevada County, California, USA
8.6km (5.3 miles) ⓘNorth Banner Consolidated Mine (North Banner Quartz Mine; North Banner Cons.; North Banner Co; North Banner Qtz), Lava Cap-Banner-Central group (Central Consolidated; South Banner; North Banner), Banner Mountain (Banner Hill), Nevada City Mining District, Nevada County, California, USA
10.1km (6.2 miles) ⓘMontana Quartz Mine (Montana Qtz.; Montana-Willow Valley group; Willow Valley Mine; Willow Valley Quartz Mine; Montana claim; Willow Valley claim), Willow Valley, Nevada City Mining District, Nevada County, California, USA
15.0km (9.3 miles) ⓘBear River Mine (Unnamed mine), New England Mills, Colfax Mining District (Illinois Mining District), Placer County, California, USA
22.1km (13.8 miles) ⓘWestern World Mine (Dempsey Ranch prospect), Smartville, Smartville Mining District, Yuba County, California, USA
33.5km (20.8 miles) ⓘGold Blossom Mine (Gold Blossom shaft; Gold Blossom vein; Marion lode; Ohio claim; Back Action claim; Gold Blossom No. 2 claim), Ophir, Ophir Mining District (Auburn Mining District; Duncan Hill Mining District), Placer County, California, USA
33.8km (21.0 miles) ⓘBoulder Mine (Bowlder Mine), Ophir, Ophir Mining District (Auburn Mining District; Duncan Hill Mining District), Placer County, California, USA
34.1km (21.2 miles) ⓘKate Hardy Mine (Hawn Mine; Derelict Mine; Kate Hardy Mine and mill), Old Mountain House, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
34.1km (21.2 miles) ⓘGolden Stag Mine (Monahan Mine), Duncan Hill, Auburn, Ophir Mining District (Auburn Mining District; Duncan Hill Mining District), Placer County, California, USA
34.5km (21.5 miles) ⓘOphir Mining District (Auburn Mining District; Duncan Hill Mining District), Placer County, California, USA
References
Lindgren, Waldemar (1896a), The gold-quartz veins of Nevada City and Grass Valley districts, California: USGS 17th. Annual Report, part 2: 119
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 364.
 
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