| Deposit ID | 10238618 |
|---|---|
| MRDS ID | W025971 |
| MAS/MILS ID | 0061090185 |
| Record type | Site |
| Current site name | Mackey Mine |
| Related records | 10077897 |
| Point of reference | Trench |
|---|---|
| Geographic coordinates: | -120.4399, 37.92882 (WGS84) |
| Elevation | 396 |
| Location accuracy | 10(meters) |
Political divisions (FIPS codes)
Tuolumne(county)
California(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Sonora(quadrangle 1:24,000 scale)
Oakdale(quadrangle 1:100,000 scale)
San Jose(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper Tuolumne(hydrologic unit)
San Joaquin(hydrologic accounting unit)
San Joaquin(hydrologic subregion)
California(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | California | Tuolumne |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 001 N | 014 E | 21 | NWSWNE | California |
| Commodity | Importance |
|---|---|
| Chromium Critical | Tertiary |
| Iron | Tertiary |
| Materials | Type of material |
|---|---|
| Antigorite | Unknown |
| Asbestos | Unknown |
| Chromite | Unknown |
| Olivine | Unknown |
| Pyroxene | Unknown |
| Trench (1) | -120.4399, 37.92882 |
|---|
| Area | 1HA | ||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Depth to top | 0M | ||||||||||||||||||||||||||
| |||||||||||||||||||||||||||
| Operation type | Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Significant | No |
| Discovery year | 1860 |
| Year of first production | 1908 |
| District name | Jamestown Area |
|---|
| Type of mineral rights | Fee Ownership |
|---|
| Ownership category | Private |
|---|
| Type | Owner |
|---|---|
| Owner | Gradella, John |
| Home office | California |
| Year | 1976 |
| Type | Operator |
|---|---|
| Owner | W. A. Fitzgerald-Last Operator,1918 |
| Home office | California |
| Year | 1976 |
| Type of workings | Underground | ||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Length | 70M | ||||||||||||||||||||||||||
| |||||||||||||||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0061090185 | |
| USGS | Mineral Resources Data System | MRDS | W025971 | MAS references MRDS |
C.D.M AND G BULL 134,PT.3,SIERRA NEVADA CHAP 1,P.14,1948
COOPERATIVE WAR MINERALS INVEST IN CAL.TUOLUMNE CO.#25,UNPU
18 CALIFORNIA STATE MINING BUR BULL NO.76,PP.213-214,BRADL
| Subject category | Comment text |
|---|---|
| Deposit | LITTLE IF ANY ORE RESERVE-CITED FROM 701 ORIGINAL MACKEY MINE NOW SITE OF ASBESTOS QUARRY,CLOSED 1975 THE AVERAGE MINEABLE GRADE OF OREOF CHROMITE IS 38.0 PERCENT IS 13.0 PERCENT. INSUFFICIENT DATA FOR MATRIX CALCULATION. ANALYSIS BY CDMG IN 1976 GAVE FOLLOWING PERCENTAGES-MASSIVE 2 08.83,CR2O3 32.89,FEO 08.18,TOTAL FE 11.58,AL203 20.78,MGO CR/FE 2.50. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 27-FEB-1984 | Stinson | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.