Grand Island Mine (Grand Island property), Jerome, Verde Mining District, Black Hills (Black Hill Range), Yavapai County, Arizona, USAi
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Latitude & Longitude (WGS84):
34° 41' 49'' North , 112° 5' 39'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Jerome | 456 (2017) | 6.0km |
| Verde Village | 11,605 (2011) | 7.7km |
| Clarkdale | 4,240 (2017) | 8.9km |
| Cottonwood | 11,818 (2017) | 9.0km |
| Cornville | 3,280 (2011) | 15.9km |
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 |
|---|---|---|
| Mingus Gem & Mineral Club | Cottonwood, Arizona | 9km |
| Verde River Rockhounds | Cottonwood, Arizona | 9km |
| Prescott Gem & Mineral Club | Prescott Valley, Arizona | 22km |
| Sedona Gem & Mineral Club | Sedona, Arizona | 36km |
A former underground Cu-Au mine on 14 claims South of the Shea Mine. Owned by the Grand Island Mining Co.; and, the Phelps Dodge Corp.
Mineralization is a 4 foot wide quartz vein on surface to 8 feet wide at the 200 level in porphyry schist and sheared diorite involving the Copper Chief fault system. The ore body is tabular. Country rock is diorite and greenstone. Ore control was faulting and shearing. Ore concentration was oxidation at near surface. Alteration is minor chloritization and seritization in country rocks.
Area structures include foliation in metavolcanic rocks that trends N65E to N80E. Vein(s) trend NE and crosscuts foliation in Precambrian rocks.
Workings include a 520 foot deep shaft with a SW cross-cut on the 200 level. Produced some ore.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Pyrite var. Gold-bearing Pyrite Formula: FeS2 |
| ⓘ 'Tetrahedrite Subgroup' Formula: Cu6(Cu4C2+2)Sb4S12S |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrite var. Gold-bearing Pyrite | 2.EB.05a | FeS2 |
| ⓘ | 2.EB.05a | FeS2 | |
| ⓘ | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| S | Sulfur | |
| S | ⓘ Pyrite var. Gold-bearing Pyrite | FeS2 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Fe | Iron | |
| Fe | ⓘ Pyrite var. Gold-bearing Pyrite | FeS2 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Sb | Antimony | |
| Sb | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Great Plains DomainDomain
- Southern Basin and RangeWide Rift
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