Janney pegmatite occurrence (Janney Station), Silver Bow County, Montana, USAi
| Regional Level Types | |
|---|---|
| Janney pegmatite occurrence (Janney Station) | Occurrence |
| Silver Bow County | County |
| Montana | State |
| USA | Country |
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Latitude & Longitude (WGS84):
45° 54' 38'' North , 112° 28' 33'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Butte | 34,190 (2011) | 11.3km |
| Butte-Silver Bow (Balance) | 33,525 (2013) | 14.0km |
| Walkerville | 700 (2017) | 14.5km |
| Whitehall | 1,094 (2017) | 29.6km |
| Warm Springs | 3,000 (2013) | 38.4km |
Power substation on abandoned railroad.
Pegmatite exposed in RR cut; Sec. 20, T 2 N, R 7 W.
Commodities (Major) - REE
Development Status: Occurrence
Host Rock: Quartz Monzonite
Pegmatite exposed in RR cut; Sec. 20, T 2 N, R 7 W.
Commodities (Major) - REE
Development Status: Occurrence
Host Rock: Quartz Monzonite
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
5 valid minerals.
Rock Types Recorded
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ 'Allanite Group' Formula: (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| ⓘ Goethite Formula: Fe3+O(OH) |
| ⓘ Microcline Formula: K(AlSi3O8) |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Quartz var. Amethyst Formula: SiO2 |
| ⓘ Quartz var. Smoky Quartz Formula: SiO2 |
| ⓘ Stibnite Formula: Sb2S3 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Stibnite | 2.DB.05 | Sb2S3 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Goethite | 4.00. | Fe3+O(OH) |
| ⓘ | Quartz var. Amethyst | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| ⓘ | var. Smoky Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| ⓘ | Microcline | 9.FA.30 | K(AlSi3O8) |
| Unclassified | |||
| ⓘ | 'Allanite Group' | - | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Goethite | Fe3+O(OH) |
| H | ⓘ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| O | Oxygen | |
| O | ⓘ Quartz var. Amethyst | SiO2 |
| O | ⓘ Goethite | Fe3+O(OH) |
| O | ⓘ Microcline | K(AlSi3O8) |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Quartz var. Smoky Quartz | SiO2 |
| O | ⓘ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| Al | Aluminium | |
| Al | ⓘ Microcline | K(AlSi3O8) |
| Si | Silicon | |
| Si | ⓘ Quartz var. Amethyst | SiO2 |
| Si | ⓘ Microcline | K(AlSi3O8) |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Quartz var. Smoky Quartz | SiO2 |
| Si | ⓘ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Stibnite | Sb2S3 |
| K | Potassium | |
| K | ⓘ Microcline | K(AlSi3O8) |
| Fe | Iron | |
| Fe | ⓘ Goethite | Fe3+O(OH) |
| Fe | ⓘ Pyrite | FeS2 |
| Sb | Antimony | |
| Sb | ⓘ Stibnite | Sb2S3 |
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Rocky MountainsMountain Range
North America PlateTectonic Plate
- Great Falls DomainDomain
- Northern Rocky MountainsWide Rift
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