Clary and Langford

Past Producer in Calaveras county in California, United States with commodities Chromium, Iron

Geologic information

Identification information

Deposit ID 10163140
MRDS ID M005992
MAS/MILS ID 0060090402
Record type Site
Current site name Clary and Langford
Alternate or previous names Porter and Springs
Related records 10109153

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -120.64681, 38.04181 (WGS84)
Elevation 530
Location accuracy 10(meters)
(click for info)

Geographic areas

Country State County
United States California Calaveras

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 002 N 012 E 10 NESWNW California

Commodities

Commodity Importance
Chromium Tertiary
Iron Tertiary

Materials information

Materials Type of material
Chromite Unknown
Olivine Unknown
Penninite Unknown
Pyroxene Unknown
Serpentine Unknown

Nearby scientific data

Main Entrance (1) -120.64681, 38.04181

Ore body information

  • Strike N40W
    Dip 90N
    Thickness 1M
    Depth to top 0M
    Width 15M
    Length 20M
    Area 1HA
    Field Value
    Type of Orebody #1 DISSEMINATED
    Shape of Orebody #1 TABULAR
    Shape of Orebody #2 IRREGULAR
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control LITHOLOGY
    Degree of Wallrock Alter. INTENSE
    Type of Wallrock Alter. #1 CARBONITIZATION
    Strike And Dip N40W
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 1
    Date of Last Modification 820226

Economic information

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1900
Year of first production 1900

Mining district

District name Black Creek Area

Mineral rights holdings

Type of mineral rights Other

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner J. E. Porter And J. H. Spring,Last Operators-1918
    Home office California
    Year 1976
  • Type Owner
    Owner C. J Tiscornia Ranches Inc.
    Interest 100
    Home office California
    Year 1976

Workings at the site

  • Type of workings Surface
    Area 1HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Mining Method OPEN PIT
    Swell Factor .6
    Avg. Overburden Thickness 0
    Primary Material Cover M-HARD ROCKS
    Percentage 100
    Hardness of Ore M-HARD ROCKS
  • Type of workings Underground
    Length 30M
    Overall depth 15M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Mining Method OPEN STOPE
    Swell Factor .6
    Hardness of Rock SOFT NONPLASTIC WITH LITTLE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. UNSUPPORTING NO FLOW
    Mine Support Chars. TIMBER W/LAGGING CONCRETE-UNREINFOR
    Number of Shafts 2
    Length of Inclines (m) 0
    Slope of Inclines 0
    Avg. Length of Adits (m) 0
    1st Condition of Workings UNKNOWN

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
U.S. Bureau of Mines Minerals Availability System MAS 0060090402
USGS Mineral Resources Data System MRDS M005992 MAS references MRDS

Bibliographic references

  • Deposit

    CAL. DIV MINES GEOL BULL 134 PT 3CHAP 3, P.47, PL.5

  • Deposit

    CAL. STATE MINING BUR BULL 76, . P121 1918

  • Deposit

    CAL. COUNTY REPT NO.2 P.128,PL.D 1962

  • Deposit

    COOP WAR MINERAL INVEST PROJ.,CALAVERAS CO. NO.10 TALIAFERRO

General comments

Subject category Comment text
Deposit CATER(1948) STATES THAT ORE WAS 45 PERCENT CR2O3. RESERVES ESTIMATED BY CATER AS PROBABLY NEGLIGIBLE. MINE VISTED 17 SPET 1975 BY CDMG. THE AVERAGE MINABLE GRADE OF CHROMITE IS 45.6 PERCENT & IRON PERCENT. INSUFFICIENT DATA FOR MATRIX CALCULATIONS. ANALYSIS BY CDMG IN 1976 GAVE FOLLOWING PERCENTAGES-MASSIVE 2 07.00,CR2O3 46.60,FEO 08.31,TOTAL FE 12.87,AL203 12.99,MGO CR/FE 3.19.

Reporter information

Type Date Name Affiliation Comment
Reporter 05-NOV-1984 Unknown U.S. Bureau of Mines