Easton-Pacific Mine, Alder Gulch Mining District (Virginia City Mining District; Fairweather Mining District), Madison County, Montana, USAi
| Regional Level Types | |
|---|---|
| Easton-Pacific Mine | Mine |
| Alder Gulch Mining District (Virginia City Mining District; Fairweather Mining District) | Mining District |
| Madison County | County |
| Montana | State |
| USA | Country |
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Latitude & Longitude (WGS84):
45° 13' 54'' North , 111° 57' 35'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Virginia City | 199 (2017) | 7.0km |
| Alder | 103 (2011) | 15.4km |
| Ennis | 884 (2017) | 22.2km |
| Sheridan | 677 (2017) | 31.0km |
| Twin Bridges | 394 (2017) | 45.3km |
Mindat Locality ID:
161267
Long-form identifier:
mindat:1:2:161267:0
GUID (UUID V4):
d46420cc-e6b2-45b1-8b90-8f374c672480
REF:Deposit:: TANSLEY ET. AL., 1933, GEO. RECON. TOBACCO ROOT MTS., MADISON CO., MT., MT BUR. MINES & GEOLOGY MEMOIR 9.
Deposit:: LORAIN, 1937, GOLD LODE MINING IN THE TOBACCO ROOT MTS., MADISON CO. MT., U. S. BUR. MINES INF. CIRC. 6972.
Deposit:: MBM&G BULL 100,1976,P.15
Deposit:: USBM IC 6972, 1937, P56.
Deposit:: USGS BULL 574, 1919, P162.
Deposit:: USBM MRB REP 73, 1952, P A-19.
Deposit:: MBM & G MEM 20, 1940, P66
Deposit:: LAWSON,
Commodities (Major) - Silver, Gold
Development Status: Producer
Host Rock Unit: Pony Formation, Gneiss
Structure: Aplite Intrusion
Host Rock: Monzonite, Aplite
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
9 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:
| β Acanthite Formula: Ag2S |
| β Gold Formula: Au |
| β Hematite Formula: Fe2O3 |
| β 'Limonite' |
| β Orthoclase Formula: K(AlSi3O8) |
| β Pyrite Formula: FeS2 |
| β Pyrite var. Gold-bearing Pyrite Formula: FeS2 |
| β Quartz Formula: SiO2 |
| β Silver Formula: Ag |
| β Sphalerite Formula: ZnS |
| β Stibnite Formula: Sb2S3 |
| β 'Tetrahedrite Subgroup' Formula: Cu6(Cu4C2+2)Sb4S12S |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| β | Silver | 1.AA.05 | Ag |
| β | Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| β | Acanthite | 2.BA.35 | Ag2S |
| β | Sphalerite | 2.CB.05a | ZnS |
| β | Stibnite | 2.DB.05 | Sb2S3 |
| β | Pyrite var. Gold-bearing Pyrite | 2.EB.05a | FeS2 |
| β | 2.EB.05a | FeS2 | |
| β | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
| Group 4 - Oxides and Hydroxides | |||
| β | Hematite | 4.CB.05 | Fe2O3 |
| β | Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| β | Orthoclase | 9.FA.30 | K(AlSi3O8) |
| Unclassified | |||
| β | 'Limonite' | - | |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | β Hematite | Fe2O3 |
| O | β Orthoclase | K(AlSi3O8) |
| O | β Quartz | SiO2 |
| Al | Aluminium | |
| Al | β Orthoclase | K(AlSi3O8) |
| Si | Silicon | |
| Si | β Orthoclase | K(AlSi3O8) |
| Si | β Quartz | SiO2 |
| S | Sulfur | |
| S | β Acanthite | Ag2S |
| S | β Pyrite var. Gold-bearing Pyrite | FeS2 |
| S | β Pyrite | FeS2 |
| S | β Sphalerite | ZnS |
| S | β Stibnite | Sb2S3 |
| S | β Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| K | Potassium | |
| K | β Orthoclase | K(AlSi3O8) |
| Fe | Iron | |
| Fe | β Pyrite var. Gold-bearing Pyrite | FeS2 |
| Fe | β Hematite | Fe2O3 |
| Fe | β Pyrite | FeS2 |
| Cu | Copper | |
| Cu | β Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Zn | Zinc | |
| Zn | β Sphalerite | ZnS |
| Ag | Silver | |
| Ag | β Acanthite | Ag2S |
| Ag | β Silver | Ag |
| Sb | Antimony | |
| Sb | β Stibnite | Sb2S3 |
| Sb | β Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Au | Gold | |
| Au | β Gold | Au |
Other Databases
| Link to USGS MRDS: | 10070464 |
|---|
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