| Principal periods worked | 1926, 1928, 1931, 1943. |
|---|---|
| Workings | Cut, adit 30, prospect pits |
| Description of muscovite | Light brown, hard, moderate cracking, ruling, staining. |
| Production | Moderate sheet |
| Shape | Tabular |
| Size | 4 T >80 L |
| Strike | NE |
| Dip | SE |
| Relation to wallrock | Concordant |
| Wallrock | Hornblende gneiss |
| Remarks | Pl-Q-M pegmatite, fine to medium grained; accessory garnet, sericite, biotite. |
| 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 |