Groom mine, Groom Mining District, Lincoln County, Nevada, USAi
| Regional Level Types | |
|---|---|
| Groom mine | Mine |
| Groom Mining District | Mining District |
| Lincoln County | County |
| Nevada | State |
| USA | Country |
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Latitude & Longitude (WGS84):
37° 20' 45'' North , 115° 46' 5'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Small silver and lead mine active from about 1870 - 1919.
Structure: Homocline, Striking N, Dipping Steeply E, Complexly Faulted Graben Main Fault, Striking N, Dipping W
Tectonics: Back-Arc Extensional Cratonic Basin
Deposit: On the limestone/shale/quartzite contact, large masses of pure white quartz occur, more or less connected by quartz veins, partially brecciated and broken. Ore occurs along the "gob" intrusion As well As out along bedding planes of limestone, replacing it with a mixture of lead and silver minerals, calcite, siderite, and a little barite, typically.
Deposit type: Polymetallic replacement
Development: W. D. Osborn had the claims patented in 1860's and built a smelter at hiko. His enterprise failed and the patents reverted to the us government. Osborn and wheatley located new claims, together with the pocin estate interests (1920's). In 1915 the property was leased to thomas mccormack who shipped ore in 1915, 1916, 1917. The company resumed operations in 1922 and shipped ore in 1922, 1923 and 1924. It was acquired by sheahan bros in 1937 and until 1942, workings were rehabilitated, 50 tpd flotation mill was built and production was attempted sporadically. Ore was shipped in 1944. Production was reported by press in 1916, 1917, development in 1929, production in 1942, 1943, 1931, development in 1936. The mine was the subject of a study by the NBMG and the USBM in 1944. The groom mine was engulfed by the usaf gunnery range after wwii.
Geology: Ore in bedded deposits in 3 thin limestone beds. Best ore in area 250 feet long between groom fault & no. 3 thrust fault, and along ns fissures; good ore found in small e W fractures. Ore bodies up to 30 feet wide
Rock formation(s): Pioche Shale;Lyndon Limestone
Ore(s): Ore In Bedded Deposits In 3 Thin Limestone Beds. Best Ore In Area 250 Feet Long Between Groom Fault & No. 3 Thrust Fault, And Along Ns Fissures; Good Ore Found In Small Ew Fractures.
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
11 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:
| ⓘ Acanthite Formula: Ag2S References: |
| ⓘ Anglesite Formula: PbSO4 References: |
| ⓘ Baryte Formula: BaSO4 |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Cerussite Formula: PbCO3 References: |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Galena Formula: PbS References: |
| ⓘ Galena var. Silver-bearing Galena Formula: PbS with Ag |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Siderite Formula: FeCO3 |
| ⓘ Sphalerite Formula: ZnS References: |
| ⓘ 'Tetrahedrite Subgroup' ? Formula: Cu6(Cu4C2+2)Sb4S12S References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Acanthite | 2.BA.35 | Ag2S |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | var. Silver-bearing Galena | 2.CD.10 | PbS with Ag |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | '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 |
| ⓘ | Siderite | 5.AB.05 | FeCO3 |
| ⓘ | Cerussite | 5.AB.15 | PbCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Anglesite | 7.AD.35 | PbSO4 |
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Cerussite | PbCO3 |
| C | ⓘ Siderite | FeCO3 |
| O | Oxygen | |
| O | ⓘ Anglesite | PbSO4 |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Cerussite | PbCO3 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Siderite | FeCO3 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Acanthite | Ag2S |
| S | ⓘ Anglesite | PbSO4 |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| S | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| S | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Siderite | FeCO3 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Ag | Silver | |
| Ag | ⓘ Acanthite | Ag2S |
| Ag | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
| Sb | Antimony | |
| Sb | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Pb | Lead | |
| Pb | ⓘ Anglesite | PbSO4 |
| Pb | ⓘ Cerussite | PbCO3 |
| Pb | ⓘ Galena | PbS |
| Pb | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
Other Databases
| Link to USGS MRDS: | 10072154 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Antler Foreland BasinBasin
- Basin and Range BasinsBasin
- Mojave DomainDomain
- Northern Basin and RangeWide Rift
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Groom mine, Groom Mining District, Lincoln County, Nevada, USA