| Principal periods worked | 1953-54 |
|---|---|
| Workings | Cut 100, shaft 35, drifts 115 |
| Description of muscovite | Ruby, bent, stained, rules, cracked, biotite intergrowths. |
| Production | Small sheet |
| Shape | Lens |
| Size | 1-15 T |
| Strike | NW |
| Dip | NE |
| Relation to wallrock | Concordant |
| Wallrock | Biotite schist |
| Extent of weathering | Weathered (40 ft). |
| Remarks | Pl-Q-M-B wall zone, medium to coarse grained; Q core. |
| Source of information | DMEA |
| 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 |