Douglas Group, Double Springs Marsh Mining District, Mineral County, Nevada, USAi
| Regional Level Types | |
|---|---|
| Douglas Group | Claim |
| Double Springs Marsh Mining District | - not defined - |
| Mineral County | County |
| Nevada | State |
| USA | Country |
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Latitude & Longitude (WGS84):
38° 20' 19'' North , 118° 11' 46'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Other/historical names associated with this locality:
Grassi, Mary, Hardluck, Orphan Boy, Juniper, Snowball, Gem,; Pepper, Roosevelt, Little Chief, Bounce, Oriole, New Party Veins; Gold Range District
Structure: Ne-Trending Faults North-Northwest-Trending Fault System Folds
Alteration: Silicification, Argillization, Fe-Staining
Deposit: East-trending veins from a fraction of an inch to 13 ft thick (bounce, snow ball, jupiter mary veins) in another type (roosevelt), free gold is present in crushed, hydrothermally altered andesitic rock.
Deposit type: Epithermal vein, Comstock
Development: Mining activity centered in the camp douglas area between 1893 and 1903.
Geology: The veins have clean, sharp contacts with clastic rocks of the dunlap and excelsior formations. The volcanic rocks to the east, containing free gold, are hydrothermally altered, contain quartz masses and are possibly post-esmeralda in age
Rock formation(s): Andesite
Excelsior;Dunlap
Ore(s): Crushed And Brecciated Andesite
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
4 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:
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Galena Formula: PbS |
| ⓘ Native Silver Formula: Ag |
| ⓘ Quartz Formula: SiO2 |
| ⓘ 'Tetrahedrite Subgroup' Formula: Cu6(Cu4C2+2)Sb4S12S |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Silver | 1.AA.05 | Ag |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Galena | PbS |
| S | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Cu | Copper | |
| Cu | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Ag | Silver | |
| Ag | ⓘ Native Silver | Ag |
| Sb | Antimony | |
| Sb | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10045304 |
|---|
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