| Principal periods worked | 1922, 1929-31, 1939-40, 1950's. |
|---|---|
| Workings | Cut, adits, shafts, area of several acres. Workings shallow. |
| Description of muscovite | Brown, "A" structure, biotite intergrowths, stained, bent, clay, stained. |
| Production | Moderate sheet |
| Wallrock | Mica schist |
| Extent of weathering | Saprolite (+30 ft). |
| Remarks | Kaolinized P-Pl-Q-M-B pegmatite. Schist inclusions common. Exposures poor. |
| Source of information | USGS |
| WWI | World War I |
| WWII | World War II |
| int | intermittent |
| Small | < 500 lb |
| Moderate | 500-10,000 lb |
| Large | > 10,000 lb |
| D | depth |
| L | length |
| T | thickness |
| avg | average |
| B | biotite |
| F | feldspar |
| M | muscovite |
| P | perthite |
| Pl | plagioclase |
| Q | quartz |
| CMC | Colonial Mica Corporation |
| DMEA | Defense Minerals Exploration Administration |
| OME | Office of Minerals Exploration |
| USGS | U.S. Geological Survey |
| OF | USGS open-file reports and maps |