Evening Star-Mazuma Mine, Trinity Mining District, Pershing County, Nevada, USAi
| Regional Level Types | |
|---|---|
| Evening Star-Mazuma Mine | Mine |
| Trinity Mining District | Mining District |
| Pershing County | County |
| Nevada | State |
| USA | Country |
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Latitude & Longitude (WGS84):
40° 19' 12'' North , 118° 29' 15'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Sec 3 T28N R31E. Gold silver
Alteration: Silicification Of Granodiorite
Deposit: Located along southeastern margin of a large granodiorite stock ; info.src : 1 pub lit; 2 unpub rept; 3 field observ workings along a shear trending n40-50e and dipping 50-70nw. Iron oxide alteration, some brecciation. Mineralization is in wispy streaks in the quartz and extends into the granodiorite. Andesite or mafic dikes occur nearby, east of the main workings. Sample 2830 is of breccia and quartz vein material with sulfides.
Deposit type: Placer Au-PGE
Development: Area worked between 1859 and 1915. No activity at time of examination in 1984.
Geology: Shear zone mineralization is characterized by a pinch-and-swell type of structure that define pods of sheared and brecciated strongly altered granodiorite, 2 to 4 feet wide and about 10 feet in diameter.
Ore(s): Shear Zones And Ong Hornfelsic Dikes
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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
3 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
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Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Native Gold Formula: Au |
| ⓘ Native Silver Formula: Ag |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| ⓘ | Native Silver | 1.AA.05 | Ag |
| 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 |
| Ag | Silver | |
| Ag | ⓘ Native Silver | Ag |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS MRDS: | 10044909 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Auld Lang Syne BasinBasin
- Basin and Range BasinsBasin
- Golconda-Roberts Mountain DomainDomain
- Havallah BasinBasin
- Northern Basin and RangeWide Rift
- West Nevada Permian-Triassic BasinBasin
USA
- Lake LahontanLake
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