| Principal periods worked |
1900, 1930-32, 1939-45, 1952, 1956. |
| Workings |
2 cuts, inclines and stope 150, shaft 65 with incline 25, and drifts 85, inclined shaft 49. |
| Description of muscovite |
Reddish-brown (hanging wall) brownish green (footwall), minor stain, mineral inclusions, ruling, bending, cracking. |
| Production |
Large sheet |
| Shape |
Contorted tabular. |
| Size |
3-15 T, >165 L |
| Strike |
NE |
| Dip |
Variable SE |
| Plunge |
SW, NE |
| Relation to wallrock |
Partly concordant |
| Wallrock |
Interlayered hornblende and biotite gneiss; biotite alteration |
| Remarks |
Pl-Q border zone, fine grained, discontinuous; accessory muscovite, garnet; Pl-Q-M wall zone, coarse grained, discontinuous; Pl-P-Q-M intermediate zone, coarse grained. P-Q inner intermediate zone, graphic texture; Q core. Accessory biotite, apatite, sericite, garnet, pyrite, hyalite. |
| Source of information |
USGS, DMEA |
