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Maurezzio Group

Past Producer in Plumas county in California, United States with commodity Chromium
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Geologic information

Identification information

Deposit ID 10043598
MRDS ID M100390
Record type Site
Current site name Maurezzio Group
Alternate or previous names Claims: Commander, Commander Extension, Deerhorn, Deerhorn Extension, Bottle Springs

Geographic coordinates

Geographic coordinates: -120.99465, 39.85099 (WGS84)
Elevation 1548
Location accuracy 1000(meters)
Relative position Assumed Spot Center Se, Sect. 17.
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Geographic areas

Country State County
United States California Plumas

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 023N 009E 17 SE California

Commodities

Commodity Importance
Chromium Primary

Materials information

Materials Type of material
Chromite Ore

Analytical data

Result ORE AVG. 38.76% CR2O3, 12.11% FE, CR TO FE RATIO 2.19 TO 1 (COMMANDER CLAIM)

Nearby scientific data

(1) -120.99465, 39.85099
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Geologic structures

Type of structure Local
Structure description Chromite Deposits Associated With Shear Zone, Commander Claim.

Ore body information

  • General form LENSE
  • General form LENSE

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1942
Year of last production 1943

Mining district

District name Middle Fork Of Feather River Area

Land status

Ownership category National Forest

Ownership information

  • Type Operator
    Owner Same As Above.
  • Type Owner
    Owner F. Maurezzio And R. R. Jesky, Quincy, Co.

Production statistics

  • Year 1943
    Period 1942-1943
    Material ORE
    Accuracy Accurate
    Description Cp_Grade: ^38.76% Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Cr2O3 Chromium Chromium 39wt-pct

Comments on the production information

  • ORE SHIPPED FROM COMMANDER CLAIM ONLY.

Comments on the workings information

  • WORKINGS CONSISTED OF A LONG OPEN CUT A 30 FT LONG DRIFT AND A PROSPECT PIT ON THE COMMANDER CLAIM. BOTTLESPRING CLAIM HAD A BULLDOZER TRENCH. (1943).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M100390

Bibliographic references

  • Deposit

    RYNEALSON, G. A., 1953, CDMG BULL 134, PART 3, CHAPT. 5, P. 298

  • Production

    CDMG BULL 134, PART 3, CHAPT. 5, P. 298

General comments

Subject category Comment text
Deposit ORE FOUND IN PLACE ON THE COMMANDER AND BOTTLE SPRING CLAIMS ONLY. FLOAT FOUND ON THE OTHER 3 CLAIMS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-82 Oster, Karel L. (Albers, John P.) U.S. Geological Survey