Last Chance and Tony Pan Patented Claims (Part of the Spider-Wasp Group; NBMG Sample Sites 3908; 3929), Wonder Mining District, Churchill County, Nevada, USAi
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Latitude & Longitude (WGS84):
39° 28' 33'' North , 118° 6' 8'' West
Latitude & Longitude (decimal):
Köppen climate type:
Structure: Fault Zone
Alteration: Silicification, Kaolinization, Bleaching Of Wallrock
Deposit: Workings follow the generally e- W striking vein system. There is a 200-300 ft blocky outcrop of silicified rhyolite near the portal of the adit. Workings follow a 5-6 ft thick silicified breccia formed along a fault zone which includes a 6-inch thick lens of limonite-stained brecciated quartz vein. The wallrock is composed of bleached, kaolinized, silicified rhyolite tuff. About 140 ft into the adit, a stope opens to the surface, and a 40 degrees decline extends down, then steepens below 40 ft. The open stope is connected to an adjacent shaft to the east, above the level of the adit.
Deposit type: Epithermal vein, Comstock
Development: Ms #3064. Size of workings would indicate at least some small past production. No activity in 1986, but surrounding area has been recently staked by erickson (1979-1980)
Ore(s): Fault Zone
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
2 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramGallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
Other Databases
| Link to USGS MRDS: | 10047699 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Golconda-Roberts Mountain DomainDomain
- Havallah BasinBasin
- Northern Basin and RangeWide Rift
- West Nevada Permian-Triassic BasinBasin
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