Last Chance property, Vicksburg Mining District, Humboldt County, Nevada, USAi
| Regional Level Types | |
|---|---|
| Last Chance property | Property |
| Vicksburg Mining District | Mining District |
| Humboldt County | County |
| Nevada | State |
| USA | Country |
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Latitude & Longitude (WGS84):
41° 50' 52'' North , 118° 41' 55'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
1 mile south of Defense mine. Tactite.
Deposit: Scheelite occurs in thin beds of garnet tactite, 1.5-3 ft wide, along the western margin of the pine forest intrusive. The granodiorite underlies the entire claim area and the tactite bodies are pendants that probably do not extend down dip more than 15 ft. The scheelite is fine-grained and fluoresces a golden yellow. Some small pods of tactite may contain about 0.5 % wo3, but most of it is barren. Owned by m.a. Jensen and j.s. Alexander, in 1944, and by herb merrill in 1976. It consists of 3 lode claims. Small prospect pits, shafts, and adits expose the contact zone for about 2000 ft. Of its length. A 1976 report concludes that the prospect yield no more than a fe W tens of tons of low-grade ore. ; info.src : 1 pub lit; 2 unpub rept
Deposit type: W skarn
Development: Only known production was 11 tons of ore, averaging 0.58 % wo3 shipped to metals reserve co. In 1943 by then owners m.a. Jensen and j.s. Alexander.
Geology: Several scheelite-bearing tactite bodies none of which is wider than 2 feet. Scheelite occurs in thin bands of garnet tactite formed along the western margin of the large pine forest intrusive mass. Small pods of mineralized tactite occur along the contact. The largest mineralized tactite pod is 3 ft thick.
Rock formation(s): Pine Forest Intrusive Mass
Ore(s): Granodiorite Contact: Tactite Zone; Shear Zone
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Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
1 valid mineral.
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 DiagramDetailed Mineral List:
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 |
| ⓘ Scheelite Formula: Ca(WO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
|---|---|---|---|
| ⓘ | Scheelite | 7.GA.05 | Ca(WO4) |
| Unclassified | |||
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Scheelite | Ca(WO4) |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Si | Silicon | |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Ca | Calcium | |
| Ca | ⓘ Scheelite | Ca(WO4) |
| W | Tungsten | |
| W | ⓘ Scheelite | Ca(WO4) |
Other Databases
| Link to USGS MRDS: | 10045000 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Columbia Basin and RangeWide Rift
- Havallah BasinBasin
- Shoofly-Olds Ferry DomainDomain
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