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Yuba Consolidated Mine (Yuba Cons.; Yuba claim; Central and Gray Eagle group; Central & Gray Eagle Gp.; Hathaway Ledge/Marietta/Mayflower; Rising Sun/Lindsay/Dinero Mining Company), Omega, Washington Mining District (Omega Mining District), Nevada County, California, USAi
Regional Level Types
Yuba Consolidated Mine (Yuba Cons.; Yuba claim; Central and Gray Eagle group; Central & Gray Eagle Gp.; Hathaway Ledge/Marietta/Mayflower; Rising Sun/Lindsay/Dinero Mining Company)Mine
Omega- not defined -
Washington Mining District (Omega Mining District)Mining District
Nevada CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
39° 21' 14'' North , 120° 42' 16'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Washington185 (2011)8.2km
Alta610 (2011)18.8km
Dutch Flat160 (2011)20.0km
Kingvale143 (2011)24.0km
Sierra City221 (2011)24.3km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Nevada County Gem & Mineral SocietyGrass Valley, California34km
Mindat Locality ID:
84935
Long-form identifier:
mindat:1:2:84935:0
GUID (UUID V4):
f1efcea7-b4ec-4863-a8c1-e90391e0bbc7


A former lode Au-Ag occurrence/mine located in sec. 2 & in the NE¼ (estimated) sec. 11, T17N, R11E, MDM, about 4.8 km ENE of Omega, along the South Yuba River, on National Forest land. MRDS database stated accuracy for this location is 500 meters.

Mineralization is hosted in granodiorite and slate. The ore body strikes N and dips 60E at a thickness of 1.22 meters (Central and Gray Eagle group). The ore body strikes N and dips 55-70E at a thickness of 4.57 meters (Yuba Consolidated). The veins occur in a shear zone of granodiorite. Most work was done near a point where the vein is cut by a 4 foot dike. Local rocks include Mesozoic granitic rocks, unit 4 (Klamath Mountains and Northern Sierra Nevada).

Workings include underground openings with a length of 487.68 meters and an overall depth of 243.84 meters and comprised of several shallow shafts, tunnels, adits and drifts.

Production data are found in: MacBoyle, Errol (1919).

It was claimed that former owners produced an estimated $2,000,000 (period values) prior to 1918. The estimated yield from the Yuba vein was $200,000 (period values) from later workings.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

2 valid minerals.

Detailed Mineral List:

Gold
Formula: Au
Localities:
Quartz
Formula: SiO2
Localities:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2

List of minerals for each chemical element

OOxygen
O QuartzSiO2
SiSilicon
Si QuartzSiO2
AuGold
Au GoldAu

Other Databases

Link to USGS MRDS:10007605

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