Surprise claim (Pocahontas Mine/claim), Hull Mine group (Rialto Mine group; Hull group of claims; Rialto claims), Buckeye vein group, Castle Dome Mine group, Castle Dome Mining District, Castle Dome Mountains, Yuma County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Surprise claim (Pocahontas Mine/claim) | Claim |
| Hull Mine group (Rialto Mine group; Hull group of claims; Rialto claims) | - not defined - |
| Buckeye vein group | - not defined - |
| Castle Dome Mine group | - not defined - |
| Castle Dome Mining District | Mining District |
| Castle Dome Mountains | Mountain Range |
| Yuma County | County |
| Arizona | State |
| USA | Country |
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Latitude & Longitude (WGS84):
33° North , 114° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~1km
Type:
Köppen climate type:
A Pb-Ag-F-Ba-V-Mo-Zn-Au-Cu (As-Se-Be-Sb) mine. Started before 1880. Owned by the Castle Dome Mining & Smelting Co., New York; and, the Hull or Rialto Co. (1916- ).
Mineralization is irregular masses of partly oxidized argentiferous galena in a gangue of fluorite and calcite, up to 12 feet wide, and over some 2,000 feet in length, in a lensing vein along a fault zone with intersecting faults containing gouge and mineralization. Some wulfenite and associated vanadinite and vanadiferous mimetite occur in open cavities. Wall rocks are Mesozoic shale, limestone, and sandstone, strongly sericitized with some silicification and chloritization, cut by diorite porphyry dikes. Surface exposures are limited by the gravel cover of the rock pediment.
Workings include a shaft at 250 feet deep and stopes worked from a series of shafts down to about 200 feet. Connected to the Railroad Mine by a 200 foot long drift. Total production for the group would be some 20,000 tons or more of ore.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Calcite Formula: CaCO3 |
| ⓘ 'Chlorite Group' |
| ⓘ Fluorite Formula: CaF2 |
| ⓘ Galena Formula: PbS |
| ⓘ Galena var. Silver-bearing Galena Formula: PbS with Ag |
| ⓘ Mimetite Formula: Pb5(AsO4)3Cl |
| ⓘ Mimetite var. Vanadium-bearing Mimetite Formula: Pb5(AsO4,VO4)3Cl |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
| ⓘ Muscovite var. Sericite Formula: KAl2(AlSi3O10)(OH)2 |
| ⓘ Vanadinite Formula: Pb5(VO4)3Cl |
| ⓘ Wulfenite Formula: Pb(MoO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | var. Silver-bearing Galena | 2.CD.10 | PbS with Ag |
| Group 3 - Halides | |||
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Wulfenite | 7.GA.05 | Pb(MoO4) |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Mimetite | 8.BN.05 | Pb5(AsO4)3Cl |
| ⓘ | Vanadinite | 8.BN.05 | Pb5(VO4)3Cl |
| ⓘ | Mimetite var. Vanadium-bearing Mimetite | 8.BN.05 | Pb5(AsO4,VO4)3Cl |
| Group 9 - Silicates | |||
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
List of minerals for each chemical element
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Sonoran DesertDesert
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
- Southern Basin and RangeWide Rift
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References
Hamilton, Patrick (1881) The Resources of Arizona - A Manual of Reliable Information Concerning the Territory. The Legislature of the Territory of Arizona. p.72
