Third Term Mine (Fourth Term Mine), Ontario Mining District (Elliston Mining District), Powell County, Montana, USAi
| Regional Level Types | |
|---|---|
| Third Term Mine (Fourth Term Mine) | Mine |
| Ontario Mining District (Elliston Mining District) | Mining District |
| Powell County | County |
| Montana | State |
| USA | Country |
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Latitude & Longitude (WGS84):
46° 30' 10'' North , 112° 21' 8'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Elliston | 219 (2011) | 8.9km |
| Helena West Side | 1,637 (2011) | 21.1km |
| Avon | 111 (2011) | 21.8km |
| Helena | 30,581 (2017) | 26.1km |
| Basin | 212 (2011) | 26.6km |
Mindat Locality ID:
165110
Long-form identifier:
mindat:1:2:165110:5
GUID (UUID V4):
ea36e330-4a0d-42b3-a4fe-8b5cddec7ecb
REF:Deposit:: MBMG BULL 30, P. 33.
Deposit:: MBMG BULL 115, P. 14.
Deposit:: MBMG BULL-98, P. 15, 16, 51.
Production:: MBMG BULL 98, P. 51.
Deposit:: JOHNS,1952,UNPUB BS THESIS,MSM
Deposit:: YOUNG,ETAL,1962,MBMG BULL.30,P.33
Deposit:: MBM & G BULL 100, 1976, P.21
Commodities (Major) - Silver, Copper, Lead, Zinc; (Minor) - Gold; (Trace) - Arsenic, Nickel, Antimony
Development Status: Past Producer
Structure: Boulder Batholith
Host Rock: 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
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:
| ⓘ Ankerite Formula: Ca(Fe2+,Mg)(CO3)2 |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Covellite Formula: CuS |
| ⓘ Galena Formula: PbS |
| ⓘ Gold Formula: Au |
| ⓘ 'Limonite' |
| ⓘ Millerite Formula: NiS |
| ⓘ Polybasite Formula: [Ag6Sb2S7][Ag9CuS4] |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Sphalerite Formula: ZnS |
| ⓘ 'Tetrahedrite Subgroup' Formula: Cu6(Cu4C2+2)Sb4S12S |
| ⓘ 'Tourmaline' Formula: AD3G6 (T6O18)(BO3)3X3Z |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Covellite | 2.CA.05a | CuS |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Millerite | 2.CC.20 | NiS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
| ⓘ | Polybasite | 2.GB.15 | [Ag6Sb2S7][Ag9CuS4] |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Ankerite | 5.AB.10 | Ca(Fe2+,Mg)(CO3)2 |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Tourmaline' | - | AD3G6 (T6O18)(BO3)3X3Z |
List of minerals for each chemical element
| B | Boron | |
|---|---|---|
| B | ⓘ Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
| C | Carbon | |
| C | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
| Mg | Magnesium | |
| Mg | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Covellite | CuS |
| S | ⓘ Galena | PbS |
| S | ⓘ Millerite | NiS |
| S | ⓘ Polybasite | [Ag6Sb2S7][Ag9CuS4] |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| S | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Ca | Calcium | |
| Ca | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Ca | ⓘ Calcite | CaCO3 |
| Fe | Iron | |
| Fe | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Ni | Nickel | |
| Ni | ⓘ Millerite | NiS |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Covellite | CuS |
| Cu | ⓘ Polybasite | [Ag6Sb2S7][Ag9CuS4] |
| Cu | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Ag | Silver | |
| Ag | ⓘ Polybasite | [Ag6Sb2S7][Ag9CuS4] |
| Sb | Antimony | |
| Sb | ⓘ Polybasite | [Ag6Sb2S7][Ag9CuS4] |
| Sb | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Au | Gold | |
| Au | ⓘ Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10019320 |
|---|
Other Regions, Features and Areas containing this locality
North America
- Rocky MountainsMountain Range
North America PlateTectonic Plate
- Great Falls DomainDomain
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