1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Temescal Tin Mine

Producer in Riverside county in California, United States with commodity Tin
Map
XML
JSON
KML
B
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10077106
MRDS ID W024542
Record type Site
Current site name Temescal Tin Mine
Alternate or previous names Cajalco
Related records 10212629

Geographic coordinates

Geographic coordinates: -117.48087, 33.84753 (WGS84)
Elevation 366
Relative position 870 ACRES OF PROPERTY IS IN W. PART OF RANCHO EL SOBRANTO DE SAN JACINTO, ABOUT 5 MI. S.E. OF CORONA, AND 11 MI. S.W. OF RIVERSIDE.

Site location context

Political divisions (FIPS codes)

Riverside(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Lake Mathews(quadrangle 1:24,000 scale)

Santa Ana(quadrangle 1:100,000 scale)

Santa Ana(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Santa Ana(hydrologic unit)

Santa Ana(hydrologic accounting unit)

Southern California Coastal(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Riverside

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 004S 006W 02,03,10,11 California

Commodities

Commodity Importance
Tin Critical Primary

Materials information

Materials Type of material
Cassiterite Ore
Tourmaline Gangue

Analytical data

Result ORE GRADE AVERAGE 4 PERCENT TIN OXIDE, OR 0.15 PERCENT TIN.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) -117.48087, 33.84753
ListMap

Economic information

Ore body information

  • Strike N 20 TO 50 E
    Dip 50 - 85 N.W.
    Width 4.57M

Comments on the geologic information

  • GEOL.DESC: TIN OCCURS AS CASSITERITE IN BLACK TOURMALINE VEINS IN COARSE-GRAINED HORNBLENDE-BIOTITE GRANITE. 65 VEINS ARE PRESENT, 10 HAVE BEEN EXPLORED. THEY VARY FROM 1 INCH TO 15 FT. IN WIDTH, AVERAGING 1 TO 2 FT. GENERAL TREND IS N 20 TO 50 E, DIPPING 50 TO 85 N.W. VEINS CONTAIN QUARTZ ALSO. MOST VEINS ARE LESS THAN 1000 FT. LONG AND DISCONTINUOUS. THE MAIN VEIN, CAJALCO, IS OVER 690 FT. IN DEPTH. COUNTRY ROCK IS A QUARTZ MONZONITE (?). CALJACO IS EXPOSED OVER 550 FT. IN LENGTH,STRIKES N 55 E, DIPS 55 TO 80 N.W., 1 INCH TO 5 FT. 10 INCHES THICK. CASSITERITE OCCURS AS DISSEMINATIONS, BUNCHES AND STRINGERS

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Large
Significant No

Mining district

District name Temescal

Comments on the workings information

  • 65 VEINS, 10 OF WHICH HAVE BEEN EXPLORED BY TUNNELS AND SHAFTS.

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. M & G., VOL. 41 , NO. 3 , JULY 1945 , PP. 153 - 154

  • Deposit

    U.S. BUREAU OF MINES, INV. REPT. 3876 , PP. 8 - 9

  • Deposit

    D.O.M. BULL. 176 , 1957 , P. 643

  • Deposit

    PAGE, L.R. AND THAYER, TEMESCAL TIN DIST., RIVERSIDE CO., U.S. GEOLOGICAL SURVEY, UNPUBL REPT, 1945

  • Deposit

    SAMPSON, R.J., AND TUCKER, W.B., 1945, MINERAL RESOURCES OF RIVERSIDE COUNTY; CALIFORNIA DIVISION OF MINES AND GEOLOGY, VOL. 41, NO. 3, P. 153-4.

General comments

Subject category Comment text
Deposit TIN OCCURS AS CASSITERITE IN TOURMALINE VEINS IN COARSE GRANITE. SOME QUARTZ VEINS SCATTERED IN THE VEINS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1978 Killman, K.; Albers, J. U.S. Geological Survey
Updater 01-OCT-1991 Unkefer, Jason U.S. Geological Survey CLEANED UP HOST ROCK AND IGNEOUS ROCK TYPE
Editor 01-JUL-1993 Mosier, Dan U.S. Geological Survey FIELDS.

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.