| Deposit ID | 10117391 |
|---|---|
| MAS/MILS ID | 0060990036 |
| Record type | Site |
| Current site name | Black Bart Group |
| Alternate or previous names | Black Bart Mine |
| Point of reference | Trench |
|---|---|
| Geographic coordinates: | -121.43992, 37.41432 (WGS84) |
| Elevation | 549 |
| Location accuracy | 100(meters) |
Political divisions (FIPS codes)
Stanislaus(county)
California(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Mount Boardman(quadrangle 1:24,000 scale)
San Jose(quadrangle 1:100,000 scale)
San Jose(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Panoche-San Luis Reservoir(hydrologic unit)
San Joaquin(hydrologic accounting unit)
San Joaquin(hydrologic subregion)
California(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | California | Stanislaus |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Mount Diablo | 006 S | 005 E | 16 | E2SWNW | California |
| Commodity | Importance |
|---|---|
| Chromium Critical | Tertiary |
| Iron | Tertiary |
| Materials | Type of material |
|---|---|
| Antigorite | Unknown |
| Chromite | Unknown |
| Olivine | Unknown |
| Serpentine | Unknown |
| Trench (1) | -121.43992, 37.41432 |
|---|
| Strike | N85W | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dip | 60N | ||||||||||||||||||||||||||||||||
| Width | 1M | ||||||||||||||||||||||||||||||||
| Area | 7HA | ||||||||||||||||||||||||||||||||
| Depth to top | 0M | ||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||
| Operation type | Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Significant | No |
| Discovery year | 1917 |
| Year of first production | 1917 |
| District name | Del Puerto Area |
|---|
| Type of mineral rights | Patented |
|---|---|
| Type of mineral rights | Fee Ownership |
| Type of mineral rights | Minerals Only |
| Ownership category | Private |
|---|
| Type | Owner |
|---|---|
| Owner | Gary Barber-Surface Rights Only |
| Interest | 100 |
| Home office | California |
| Year | 1976 |
| Type | Owner |
|---|---|
| Owner | Alphonso Estate - Mineral Rights Only |
| Interest | 100 |
| Home office | California |
| Year | 1976 |
| Type | In-situ | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1942 | |||||||||||||||||||||
| Inferred | 2000mt ore | |||||||||||||||||||||
| Total resources | 2000mt ore | |||||||||||||||||||||
| ||||||||||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0060990036 |
HAWKES ET AL.USGS BULL 936-D,1942P.93-94, 98-101
CDMG BULL 134,PT2,CHAP 2,1953 STANISLAUS COUNTY P.75
CJMG VOL 43,NO 2,MINES AND MINERAL RESOURCES STANISLAUS CO.P
| Subject category | Comment text |
|---|---|
| Deposit | GRAB SAMPLE ORE RAN 33.8 PERCENT CR2O3. PURE CRMT 41.25 PERCENT CR2O3 CR TO FG RATIO 2.20 RESERVE ESTIMATE BY HAWKES ET AL USGS BULL.936-D,CHROMITE AN SILVER RESOURCES OF THE DEL PUERTO AREA 1942 THE AVERAGE MINEABLE GRADE OF CHROMITE IS 33.8 PERCENT AND IR 15 PERCENT. INADEQUATE RESOURCES FOR COST ANALYSIS. ANALYSIS BY CDMG IN 1976 GAVE FOLLOWING PERCENTAGES-DISSEMIN E=S102 03.34,CR2O3 38.67,FEO 11.64,TOTAL FE 14.47,AL203 19.9 4.09,CR/FE 2.33. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 27-FEB-1984 | Wetzel, Nicholas | 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.