| Principal periods worked |
1900, 1914-20, 1925, 1929, 1942-47, 1955-59. |
| Workings |
Incline and stope >500; several adits, shafts. |
| Description of muscovite |
Brownish green, clear, moderately ruled, bent, tied. |
| Production |
Large sheet, scrap. |
| Shape |
Irregular, tabular. |
| Size |
1-25, T, >500 L |
| Strike |
NE |
| Dip |
SE |
| Plunge |
SW |
| Relation to wallrock |
Partly concordant |
| Wallrock |
Hornblende gneiss, biotite, alteration |
| Extent of weathering |
Partly weathered (100 ft) |
| Remarks |
Irregularly zoned: Pl-P-Q-M pegmatite, fine to coarse grained in upper workings; Pl pegmatite, coarse grained; accessory quartz, muscovite, garnet, in lower workings with Pl-M pegmatite along foot wall, center, or hanging wall; Q-Pl pegmatite, fine to medium grained, locally. Muscovite concentrated in the areas of low dip. |
| Source of information |
USGS, OF |
