North Star

The North Star is a gold mine located in Nevada county, California at an elevation of 2,402 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Name: North Star  

State:  California

County:  Nevada

Elevation: 2,402 Feet (732 Meters)

Primary Mineral: Gold

Lat, Long: 39.19417, -121.14500

Map: View on Google Maps


Satelite image of the North Star

North Star MRDS details

Site Name

Primary: North Star


Commodity

Primary: Gold
Secondary: Copper
Secondary: Lead
Secondary: Zinc


Location

State: California
County: Nevada


Land Status

Not available


Holdings

Not available


Workings

Type: Underground


Ownership

Not available


Production

Year: 1933
Material type: ORE
Description: Ap_Grade: ^.38 Oz Au/Ton
Year: 1919
Material type: CON
Description: Ap_Grade: ^3180 Lbs. Cu, 222000 Lbs Pb


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: L


Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada


Mineral Deposit Model

Not available


Orebody

Form: PINCHS, SWELLS, IRREGULAR


Structure

Type: L
Description: Ne-Striking Fissures, Faulting (Strike N, Dip 50 W)


Alterations

Alteration Type: L
Alteration Text: Oxidized To 5 - 150 Ft. Depth W/High Grade Ore


Rocks

Not available


Analytical Data

Not available


Materials

Ore: Gold
Gangue: Calcite
Gangue: Quartz


Comments

Comment (Workings): STOPED, SHAFTS, DRIFTING, WINZE, RAISES, MANY LEVELS

Comment (Deposit): VEINS, AVG. 16 IN. THICK. GOUGE ZONE AROUND WALLS, SULFIDES AVG. 2 %

Comment (Geology): DIABASE IS BRECCIATED ALONG VEINS

Comment (Deposit): PATENTED 1200 ACRES. CLAIM PART OF EMPIRE STAR MINES CO. INCLUDES GOLD HILL; NEW YORK HILL, NEW ROCKY BAR, GRANITE HILL, CINCINNATI & OTHERS ; INFO.SRC : 1 PUB LIT

Comment (Location): UTM ACC. SW 1/4 34

Comment (Production): 1933 - 34 FIGURES FOR NORTH STAR & EMPIRE MINES. COMBINED PRODUCTION OF GRASS VALLEY HOLDINGS OF NORTH STAR MINES. UP TO END OF 1928 WAS $33,267,734 . CON. AVG. $60 - $125/TON. PRODUCTION YIELD DECREASES W/DEPTH WHILE HORIZONTAL YIELD (PER SQUARE FOOT) INCREASES: $50 - $100 AU/TON 5 - 150 FT. LEVEL, TO 3000 FT. AVG. $20 AU/TON FOR ADDITIONAL PRODUCTION DATA, SEE LOGAN ( 1930 ) P. 121 - 124 .


References

Reference (Deposit): LOGAN, C. A., 1941 , MINERAL RESOURCES OF NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 37 , NO. 3 , PL. 3 , 394 - 5 .

Reference (Deposit): MACBOYLE, E., 1918 , MINES AND MINERAL RESOURCES OF NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 16 , P. 211 - 224 .

Reference (Deposit): LOGAN, C. A., 1930 , SACRAMENTO FIELD DIVISION: REPORT XXVI OF THE STATE MINERALOGIST; CALIFORNIA DIVISION OF MINES VOL. 26 , NO. 2 , P. 121 - 124 .

Reference (Production): LOGAN, ( 1941 ) MACBOYLE ( 1918 ) LOGAN ( 1930 ) GOODWIN ( 1957 )

Reference (Deposit): GOODWIN, J. G., 1957 , LEAD AND ZINC IN CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 57 , NOS 3 AND 4 , P. 582 .