Gorman-Hall Mine (Hall-Gorham group; Gorham-Hall Mine; Silver Pick Mine), Mineral Mountain area, Mineral Mountain Mining District, Pinal County, Arizona, USAi
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Latitude & Longitude (WGS84):
33° 12' 50'' North , 111° 11' 48'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Queen Valley | 788 (2011) | 12.8km |
| Superior | 2,943 (2017) | 12.9km |
| Gold Camp | 10,159 (2011) | 13.4km |
| Top-of-the-World | 231 (2011) | 24.2km |
| Florence | 31,110 (2017) | 26.9km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Gila County Gem & Mineral Society | Miami, Arizona | 37km |
| Apache Junction Rock and Gem Club | Apache Junction, Arizona | 40km |
| Pinal Gem and Mineral Society | Coolidge, Arizona | 40km |
Mindat Locality ID:
130601
Long-form identifier:
mindat:1:2:130601:2
GUID (UUID V4):
a0c24963-969b-4f8b-9d0f-4b000b85bb96
A former underground Ag-Pb-Au-Cu mine located on 6 unpatented claims (some of the names are: Blue Bell, Silver Pick, Jumbo, Fairview, and Badger) in the SW¼SW¼NW¼ sec. 35, T2S, R11E, about 2¾ miles NNE of Mineral Mountain, on private land. Produced 1940-1948. In 1950 the Gorman-Hall group was purchased by the Mineral Mountain Mining and Milling Co., which also owns the Woodpecker Mine to the east; now a part of the Woodpecker Mine property. Owned by Pat Gorham, Mineral Mountain Mining and Milling Co. (1948). Operated by H. Eisenberg, En. Perkins, Silver Pick (Peak) Mining Co. (1927). UTM taken to two shafts just W of the Woodpecker Mine.
Mineralization is a vein deposit in a NW-trending shear zone with crustification textures. The ore zone is 152.4 meters long, 9.14 meters wide, strikes NW-SE and dips 40-90SW. Host rock unit is the Precambrian Pinal Schist. Alteration is leaching and oxidized mineralization at near surface. Orebody is tabular. Shear zone in the area are NW-SE and dip 40°SW. Mineralization is associated with Tertiary intrusion and volcanism (15.8-17.4 MY). Quartz latite is exposed 1 mile west of the mine. The claim group is intersected by numerous silicified minealized shear zones with 4 prominent veins being developed the most.
Workings include numerous shallow openings (pits & cuts, two 100 foot deep inclined shafts (55 degree incline)). There is no record of production or development after 1948.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Acanthite Formula: Ag2S |
| ⓘ Anglesite Formula: PbSO4 |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Chlorargyrite Formula: AgCl |
| ⓘ Galena Formula: PbS |
| ⓘ Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Acanthite | 2.BA.35 | Ag2S |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Galena | 2.CD.10 | PbS |
| Group 3 - Halides | |||
| ⓘ | Chlorargyrite | 3.AA.15 | AgCl |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Anglesite | 7.AD.35 | PbSO4 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Anglesite | PbSO4 |
| O | ⓘ Calcite | CaCO3 |
| S | Sulfur | |
| S | ⓘ Acanthite | Ag2S |
| S | ⓘ Anglesite | PbSO4 |
| S | ⓘ Galena | PbS |
| S | ⓘ Sphalerite | ZnS |
| Cl | Chlorine | |
| Cl | ⓘ Chlorargyrite | AgCl |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Ag | Silver | |
| Ag | ⓘ Acanthite | Ag2S |
| Ag | ⓘ Chlorargyrite | AgCl |
| Pb | Lead | |
| Pb | ⓘ Anglesite | PbSO4 |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10048304 |
|---|
Other Regions, Features and Areas containing this locality
North America
- Sonoran DesertDesert
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mazatzal DomainDomain
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References
