| Deposit ID | 10069803 |
|---|---|
| MRDS ID | W007494 |
| Record type | Site |
| Current site name | Staley Mine |
| Alternate or previous names | Gerhardt Mine |
| Related records | 10249314 |
| Geographic coordinates: | -79.59977, 35.80009 (WGS84) |
|---|
Political divisions (FIPS codes)
Randolph(county)
North Carolina(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Liberty(quadrangle 1:24,000 scale)
Chapel Hill(quadrangle 1:100,000 scale)
Raleigh(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Deep(hydrologic unit)
Cape Fear(hydrologic accounting unit)
Cape Fear(hydrologic subregion)
South Atlantic-Gulf(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | North Carolina | Randolph |
| Commodity | Importance |
|---|---|
| Talc-Soapstone | Primary |
| Materials | Type of material |
|---|---|
| Andalusite | Ore |
| Pyrophyllite | Ore |
| Topaz | Ore |
| Chloritoid | Gangue |
| Quartz | Gangue |
| Sericite | Gangue |
| Model code | 154 |
|---|---|
| USGS model code | 25e |
| Deposit model name | Epithermal quartz-alunite Au |
| Mark3 model number | 38 |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Schist |
| (1) | -79.59977, 35.80009 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Metamorphic Cleavage N 50 E, Dipping 60-70 Nw. |
| General form | LENTICULAR, PIPELIKE |
|---|---|
| Dip | 65 DEG NW |
| Length | 107M |
| Width | 61M |
| Development status | Past Producer |
|---|---|
| Commodity type | Non-metallic |
| Deposit size | Large |
| Significant | No |
| Year of first production | 1930 |
| Year of last production | 1965 |
| Type | Owner |
|---|---|
| Owner | Carolina Pyrophyllite Co. |
| Type of workings | Surface |
|---|---|
| Overall depth | 76M |
| Overall length | 83.21M |
| Overall width | 55M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W007494 |
STUCKEY, J. L., 1928, THE PYROPHYLLITE DEPOSITS OF NORTH CAROLINA: NORTH CAROLINA GEOL. SURV. BULL. 37.
BURGESS, B. C. 1936, PYROPHYLLITE, A NEW DEVELOPMENT - THE GERHARDT DEPOSIT: AM. CERAMIC SOC. BULL., V. 15, P. 299 - 302.
ESPENSHADE, G. H., APR. 15, 1953: MAY 27, 1958, UNPUBLISHED FILE REPORT. STUCKEY, J.L., 1967, PYROPHYLLITE DEPOSITS IN NORTH CAROLINA: N.C. GEOLOGICAL SURVEY BULLETIN 80.
STUCKEY, 1967, PYROPHYLLITE IN NORTH CAROLINA: NC GEOLOGICAL SURVEY BULLETIN 80, P. 28.
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-1959 | Espenshade, Gilbert H. | U.S. Geological Survey | |
| Updater | 01-JUN-1992 | Klein, T.L. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.