| Deposit ID | 10080109 |
|---|---|
| MRDS ID | W031187 |
| Record type | Site |
| Current site name | Edenton Mine |
| Geographic coordinates: | -77.78303, 38.08338 (WGS84) |
|---|---|
| Relative position | EXACT LOCATION UNKNOWN, ABOUT 13.6 KM 8.5 MI NORTHEAST OF MINERAL. MINE IS WITHIN ONE MINUTE OF THE LONGITUDE-LATITUDE GIVEN. |
Political divisions (FIPS codes)
Spotsylvania(county)
Virginia(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Lake Anna West(quadrangle 1:24,000 scale)
Fredericksburg(quadrangle 1:100,000 scale)
Washington(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Pamunkey(hydrologic unit)
Lower Chesapeake(hydrologic accounting unit)
Lower Chesapeake(hydrologic subregion)
Mid Atlantic(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Virginia | Spotsylvania |
| Commodity | Importance |
|---|---|
| Mica | Primary |
| Feldspar | Secondary |
| Tantalum Critical | Secondary |
| Niobium (Columbium) Critical | Secondary |
| Materials | Type of material |
|---|---|
| Cleavelandite | Ore |
| Muscovite | Ore |
| Quartz | Gangue |
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Metamorphic Rock > Schist | ||||
| Rock unit name | Chopawamsic Formation | ||||
| Rock description | Chopawamsic Formation | ||||
| |||||
| (1) | -77.78303, 38.08338 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Ne-Sw Trend |
| Type of structure | Local |
| Structure description | Faults? |
| General form | LENS |
|---|---|
| Strike | N 60 DEG E |
| Dip | 60 DEG NW |
| Development status | Past Producer |
|---|---|
| Commodity type | Both |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1900 |
| Discoverer | R.M. Lloyd ? |
| Year of first production | 1900 |
| Ownership category | Private |
|---|
| Type | Operator |
|---|---|
| Owner | R. M. Lloyd |
| Type | Owner |
|---|---|
| Owner | L. W. Edenton |
| Type of workings | Unknown |
|---|---|
| Overall depth | 15M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W031187 |
BROWN, W.R., 1962, MICA AND FELDSPAR DEPOSITS OF VIRGINIA: VIRGINIA DIVISION OF MINERAL RESOURCES, MINERAL RESOURCES REPORT 3, 195 P.
DIETRICH, R.V., 1970, MINERALS OF VIRGINIA: VIRGINIA POLYTECHNIC INSTITUTE, RESEARCH DIVISION BULLETIN 47, WILLIAMS PRINTING CO., RICHMOND, VA., 325 P.
1900 DIREXPL R.M. LLOYD - OPENED MINE, PRODUCED MIC
| Subject category | Comment text |
|---|---|
| Deposit | KAOLINIZED PEGMATITE (QUARTZ-FELDSPAR) IN A BODY 1.8 M (6 FT) THICK IS EXPOSED IN THE PARTLY CAVED SHAFT. A BODY OF PEGMATITE 1.2 TO 1.5 M (4 TO 5 FT) THICK, STRIKING N 75 DEG E AND DIPPING 60 DEG NW, APPROXIMATELY PARALLEL WITH THE FOLIATION OF THE ENCLOSING WALL ROCK, IS EXPOSED IN THE SOUTHWESTERN PIT. A MASSIVE CORE IS INDICATED BY LARGE BLOCKS OF QUARTZ IN THE DUMPS. THE MICA IN THE DUMPS IS OF FAIR TO GOOD QUALITY AND SOME BOOKS WOULD YIELD 3- BY 3- INCH TRIMMED SHEETS. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JAN-1981 | Trimble, David C. (Sweet, Palmer C.) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.