Yellow Jacket Mine, Mount Union quadrangle, Hassayampa Mining District, Bradshaw Mountains (Bradshaw Range), Yavapai County, Arizona, USAi
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Latitude & Longitude (WGS84):
34° 20' 35'' North , 112° 27' 43'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Wilhoit | 868 (2011) | 14.7km |
| Mayer | 1,497 (2011) | 21.6km |
| Prescott | 41,899 (2017) | 21.9km |
| Peeples Valley | 428 (2011) | 25.7km |
| Spring Valley | 1,148 (2011) | 27.8km |
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 |
|---|---|---|
| Prescott Gem & Mineral Club | Prescott Valley, Arizona | 33km |
| Black Canyon City Rock Club | Black Canyon City, Arizona | 42km |
| Wickenburg Gem and Mineral Society | Wickenburg, Arizona | 48km |
Other/historical names associated with this locality:
Twin Ledge claims; Twin Ledge prospect; Frankie and Johnnie prospect
A former underground Mo-Cu-Ag-Au mine and group of claims located in the NW¼ sec. 33, T.12N., R.2W. Held by location in 1943 by Marguerite Williams, Groom Creek. NOTE: Alternate coordinates provided: 34.4639N, 112.475W.
Mineralization is a quartz vein trending NNW that crops out for about 1,000 feet. In the outcrop the vein averages about 24 inches (60 cm) wide, but in the adit (30 feet down), it is only 8 inches (20 cm) wide. The vein is oxidized near the surface, and the quartz is stained with limonite and malachite. Sulfides are scattered through the quartz vein, and molybdenite seams coat several of the faults near the vein. Chalcopyrite is disseminated in the granitic country rock contiguous to the vein. An associated rock unit is the Crooks Canyon Granodiorite. Ore control was faulting and shearing. Ore concentration was oxidation and enrichment at near surface. Minor alteration.
Area structures include granodiorite and gabbro-diorite that is rather massive. Veins trend N-S to NNE.
Workings feature a 100 foot long adit.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Chalcopyrite Formula: CuFeS2 Description: In quartz vein & disseminated in country rock adjacent to it. |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 Description: As stains near surface. |
| ⓘ Molybdenite Formula: MoS2 Description: In quartz veins and as seams coating faults near the quartz vein. |
| ⓘ Pyrite Formula: FeS2 Description: In a quartz vein. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Molybdenite | 2.EA.30 | MoS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Molybdenite | MoS2 |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Mo | Molybdenum | |
| Mo | ⓘ Molybdenite | MoS2 |
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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