Midnight mine, Fairview Mining District, Churchill County, Nevada, USAi
| Regional Level Types | |
|---|---|
| Midnight mine | Mine |
| Fairview Mining District | Mining District |
| Churchill County | County |
| Nevada | State |
| USA | Country |
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Latitude & Longitude (WGS84):
39° 6' 46'' North , 118° 11' 24'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Gabbs | 269 (2011) | 35.7km |
Structure: Nw-Trending Faults
Deposit: Limy beds in schist are up to 10 ft wide, traceable by discontinuous outcrops for 3000 ft along strike. In 2 localities they are pure marbleized limestone, but in most places they have been metamorphosed to tactite (epidote, quartz, garnet) most of which contains small amounts of scheelite. The 3 tactite beds contain scheelite and powellite in small amounts, intermittently along a strike length of 3000 ft the beds are about 250 ft apart stratigraphically. The scheelite and powellite occur in crystals As much As 0.5 in. In diameter, commonly spaced several inches apart along fractures in the tactite beds. The small quantities of ore mined average about 0.5% wo3.
Deposit type: W skarn
Development: Developed from 1941 to 1957
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 DiagramDetailed Mineral List:
| ⓘ Powellite Formula: Ca(MoO4) References: |
| ⓘ Scheelite Formula: Ca(WO4) References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
|---|---|---|---|
| ⓘ | Powellite | 7.GA.05 | Ca(MoO4) |
| ⓘ | Scheelite | 7.GA.05 | Ca(WO4) |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Powellite | Ca(MoO4) |
| O | ⓘ Scheelite | Ca(WO4) |
| Ca | Calcium | |
| Ca | ⓘ Powellite | Ca(MoO4) |
| Ca | ⓘ Scheelite | Ca(WO4) |
| Mo | Molybdenum | |
| Mo | ⓘ Powellite | Ca(MoO4) |
| W | Tungsten | |
| W | ⓘ Scheelite | Ca(WO4) |
Other Databases
| Link to USGS MRDS: | 10047630 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Havallah BasinBasin
- Northern Basin and RangeWide Rift
- Shoofly-Olds Ferry DomainDomain
- West Nevada Permian-Triassic BasinBasin
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