| Deposit ID | 10089887 |
|---|---|
| MRDS ID | W044155 |
| Record type | Site |
| Current site name | Eastern Magnesia Talc Mine |
| Alternate or previous names | Johnson Mine |
| Geographic coordinates: | -72.64391, 44.6675 (WGS84) |
|---|---|
| Elevation | 320 |
| Relative position | 2.8 MILES NORTHEAST OF JOHNSON, VT. |
Political divisions (FIPS codes)
Lamoille(county)
Vermont(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Johnson(quadrangle 1:24,000 scale)
Mount Mansfield(quadrangle 1:100,000 scale)
Lake Champlain(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Mid Atlantic(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Vermont | Lamoille |
| Commodity | Importance |
|---|---|
| Talc-Soapstone | Primary |
| Materials | Type of material |
|---|---|
| Steatite | Ore |
| Talc | Ore |
| Magnesite | Gangue |
| Calcite | Gangue |
| Serpentine | Gangue |
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Metamorphic Rock > Metasedimentary Rock > Quartzite | ||||
| Rock unit name | Hazens Notch Formation | ||||
| Rock description | Hazens Notch Formation | ||||
| |||||
| (1) | -72.64391, 44.6675 |
|---|
| General form | IRREGULAR, PINCH AND SWELL TABULAR |
|---|---|
| Strike | N 20 E |
| Dip | 75 E |
| Development status | Past Producer |
|---|---|
| Commodity type | Non-metallic |
| Deposit size | Small |
| Significant | No |
| Year of first production | 1925 |
| Year of last production | 1975 |
| Ownership category | Private |
|---|
| Type | Owner-Operator |
|---|---|
| Owner | Eastern Magnesia Talc Co. |
| Type of workings | Underground |
|---|---|
| Length | 2286M |
| Overall depth | 77.42M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W044155 | |
| Vermont Agency of Natural Resources | VTANR | VTANR | AM85ND264 |
JACOBS, E.C., 1914, TALC, AND THE TALC DEPOSITS OF VERMONT: VT STATE GEOLOGIST, 9TH REPORT (1913-1914). P 406.
ALBEE, A.L., 1957, BEDROCK GEOLOGY OF THE HYDE PARK QUADRANGLE, VT: USGS MAP SERIES, GQ-102.
MORRILL, P. AND CHAFFEE, R., 1964, VERMONT MINES AND MINERAL LOCALITIES: MONTSHIRE MUSEUM; (HANOVER, NH), P. 24.
Jacobs, E.C., 1914, Talc And The Talc Deposits Of Vermont: 9th Annual Report, Vermont State Geologist (1915-1916), P. 406.Jacobs, E.C., 1914, Talc And The Talc Deposits Of Vermont: 9th Annual Report, Vermont State Geologist (1915-1916), P. 406.
Morrill, P. And Chaffee, R., 1964, Vermont Mines And Mineral Locations: Montshire Museum, Hanover, New Hampshire, 50 P.Morrill, P. And Chaffee, R., 1964, Vermont Mines And Mineral Locations: Montshire Museum, Hanover, New Hampshire, 50 P.
| Subject category | Comment text |
|---|---|
| Deposit | THE DEPOSIT IS A SINGLE BODY 180 FEET THICK AT THE SOUTHERN END BUT IS REPRESENTED BY FIVE LENSES IN THE NORTHERNMOST WORKINGS. |
| Deposit | IN 1951 IT WAS ESTIMATED THAT 50,000 TONS OF ORE WERE RAISED ANNUALLY. IN 1954 PRODUCTION WAS ESTIMATED AT 22,000 TONS OF PRODUCT ANNUALLY. ; INFO.SRC : 1 PUB LIT; 3 FIELD OBSERV |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Editor | 01-JAN-2003 | L. G. Woodruff | U.S. Geological Survey | checked references; location; commodities; ore materials |
| Reporter | 01-MAY-1985 | McBean, Alan J. (Ratte, Charles A.) | Vermont Agency of Environmental Conservation |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.