Crown Point Con. Qtz.

The Crown Point Con. Qtz. is a gold mine located in Nevada county, California at an elevation of 2,500 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: Crown Point Con. Qtz.  

State:  California

County:  Nevada

Elevation: 2,500 Feet (762 Meters)

Primary Mineral: Gold

Lat, Long: 39.22, -121.05167

Map: View on Google Maps


Satelite image of the Crown Point Con. Qtz.

Crown Point Con. Qtz. MRDS details

Site Name

Primary: Crown Point Con. Qtz.
Secondary: Confidence
Secondary: Wm. Penn


Commodity

Primary: Gold
Secondary: Copper
Secondary: Lead
Secondary: Silver


Location

State: California
County: Nevada
District: Grass Valley


Land Status

Not available


Holdings

Not available


Workings

Type: Underground


Ownership

Not available


Production

Not available


Deposit

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


Physiography

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


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Not available


Alterations

Not available


Rocks

Not available


Analytical Data

Analytical Data: ONE ASSAY OF 17.5 OZ AU/TON 12 OZ AG/TON


Materials

Ore: Gold
Ore: Galena
Ore: Pyrite
Gangue: Calcite
Gangue: Quartz


Comments

Comment (Workings): INCLINE & DRIFTING

Comment (Deposit): PATENTED 18.86 ACRES ; INFO.SRC : 1 PUB LIT

Comment (Production): EARLY PRODUCTION $130,000 , AVG. $17 AU/TON & 3 % SULFIDES AT $60 AU/TON

Comment (Deposit): VEIN, FEW IN - 7 FT. THICK, 2 - 3 % SULFIDES

Comment (Geology): HANGING WALL CALAVERAS SLATE, FOOTWALL ALTERED SERPENTENIZED DIABASE PORPHYRITE. CROWN POINT VEIN CARRIES MAGNETITE, PYRRHOTITE - ONLY HYPOTHERMAL VEIN IN GRASS VALLEY AREA


References

Reference (Deposit): LOGAN, C. A., 1941 , MINERAL RESOURCES OF NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 37 , NO. 3 , PL. 3 , P. 390 - 391 .

Reference (Deposit): MACBOYLE, E., 1919 , MINES AND MINERAL RESOURCES OF NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 16 , P.

Reference (Deposit): IRELAND, W., JR., 1888 , REPORT OF THE STATE MINERALOGIST: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, VOL. 8 , P. 429 - 430 .

Reference (Deposit): JOHNSTON, W. D., 1940 , THE GOLD QUARTZ VEINS OF GRASS VALLEY, CALIFORNIA: US GEOLOGICAL SURVEY PROFESSIONAL PAPER 194 , P. 24 , 93 .