Germolie Rodonick

The Germolie Rodonick is a mine located in Amador county, California at an elevation of 1,601 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

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Germolie Rodonick

Commodity

Tertiary: Manganese

Location

State: California
County: Amador

Land Status

Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Not available

Workings

Not available

Ownership

Owner Name: Paul Germolis, Et Al

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N

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: MANGANESE ORE ABOUT 20 PERCENT

Materials

Not available

Comments

Comment (Geology): GEOL.DESC: BED OF MASSIVE, MAGANIFEROUS META-CHERT; RECRYSTALLIZED TO FINE GRAINED GREY QUARTZITE AND CUT BY NARROW QUARTZ VEINLETS. IT IS PENETRATED BY MANGANESE OXIDES AND CONTAINS POCKETS 3 TO 4 INCHES WIDE OF HIGH GRADE ORE. THE MASSIVE METACHERT IS ENCLOSED IN A BELT OF RHYTHEMICALLY BEDDED WHITE TO GREY META-CHERT; 50 TO 100 FT. WIDE; 500' LONG. THE BEDDED METACHERT OCCURS WITH BEDS 1/2 TO 2 IN. THICK; WITH THIN SHALE PARTINGS. SOME RHODOCROSITE WAS FOUND ON DUMP.

Comment (Location): LOCATED IN NW 1/4 SECTION 10

Comment (Workings): OPEN CUT 8 FT. BY 8 FT. AND 6 FT. DEEP, ON S. BANK OF STREAM

Comment (Production): THE GENERAL RUN OF THE BED IS PROBABLY FAIRLY LOW GRADE, PERHAPS RUNNING 20 PERCENT MANGANESE. SOME FRAGMENTS ON ONE OF THE DUMPS CONSISTS OF BROWN TO PINK RHODOCHROSITE STAINED WITH BLACK OXIDES; NO OTHER UNOXIDIZED MANGANESE MINERALS WERE NOTED. THE BED OF ORE EXPOSED IS RATHER SMALL.

References

Reference (Deposit): CALIF. JOUR. MINES & GEOL. V. 50, NO. 1, JAN. 1954, P. 268

Reference (Deposit): DOM BULL. 152, P. 30

California Gold

"Where to Find Gold in California" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in California. Read more: Where to Find Gold in California.