Alder Gulch placers, Alder Gulch Mining District (Virginia City Mining District; Fairweather Mining District), Madison County, Montana, USAi
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Latitude & Longitude (WGS84):
45° North , 111° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~77km
Type:
Group of Placers
KΓΆppen climate type:
Mindat Locality ID:
68413
Long-form identifier:
mindat:1:2:68413:3
GUID (UUID V4):
f38f4dda-0bc8-4ab6-8b0c-ef153930452d
Almost 2.5 million ounces of gold from 20 miles of placer ground. Dredge tailings being reworked for garnet abrasive, and gem corundum.
Sections 9, 10, 11; T 6 S, R 4 W.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
β Almandine Formula: Fe2+3Al2(SiO4)3 |
β Corundum Formula: Al2O3 |
β Corundum var. Star Ruby Formula: Al2O3 |
β Gold Formula: Au |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
β | Gold | 1.AA.05 | Au |
Group 4 - Oxides and Hydroxides | |||
β | Corundum | 4.CB.05 | Al2O3 |
β | var. Star Ruby | 4.CB.05 | Al2O3 |
Group 9 - Silicates | |||
β | Almandine | 9.AD.25 | Fe2+3Al2(SiO4)3 |
List of minerals for each chemical element
O | Oxygen | |
---|---|---|
O | β Almandine | Fe32+Al2(SiO4)3 |
O | β Corundum | Al2O3 |
O | β Corundum var. Star Ruby | Al2O3 |
Al | Aluminium | |
Al | β Almandine | Fe32+Al2(SiO4)3 |
Al | β Corundum | Al2O3 |
Al | β Corundum var. Star Ruby | Al2O3 |
Si | Silicon | |
Si | β Almandine | Fe32+Al2(SiO4)3 |
Fe | Iron | |
Fe | β Almandine | Fe32+Al2(SiO4)3 |
Au | Gold | |
Au | β Gold | Au |
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