Geologic information
Identification information
| Deposit ID |
10026328 |
| MRDS ID |
K003592 |
| Record type |
Site |
| Current site name |
Little Hawk Ridge Mine |
| Alternate or previous names |
John |
Geographic areas
| Country |
State |
County |
| United States |
North Carolina |
Mitchell |
Comments on the location information
- SEE PLATE 3, USGS PROF. PAPER 577 FOR LOCATION
Commodities
| Commodity |
Importance |
| Mica |
Primary |
Comments on the commodity information
- MUSCOVITE - REDDISH BROWN, HARD, MINOR RULING, BENDING. SOME "A" STRUCTURE, TIED, MINERAL INCLUSIONS.
Materials information
| Materials |
Type of material |
| Garnet |
Gangue |
| Pyrite |
Gangue |
| Sericite |
Gangue |
Alteration
-
(Local)
Weathered (25 - 50 Ft)
Host and associated rocks
| Host or associated |
Host |
| Rock type |
Metamorphic Rock
> Gneiss |
| Stratigraphic age (youngest) |
Neoproterozoic |
|
Geologic structures
| Type of structure |
Local |
| Structure description |
Pegmatite Is Partly Concordant With The Foliation Of The Enclosing Country Rock |
Ore body information
| General form |
PINCH AND SWELL, ELONGATE LENS |
| Strike |
NE |
| Dip |
SE |
| Thickness |
3.66M
|
| Plunge |
E
|
Comments on the geologic information
- PLAGIOCLASE - QUARTZ - MUSCOVITE WALL ZONE, MEDIUM GRAINED; PLAGIOCLASE - QUARTZ - PERTHITE INTERMEDIATE ZONE, MEDIUM TO COARSE GRAINED; QUARTZ - PERTHITE CORE, IN SOUTHWESTERN PART; NORTHEASTERN PART UNZONED PLAGIOCLASE - PERTHITE - QUARTZ - MUSCOVITE PEGMATITE.
