Helena Prospects, Index Mining District, Snohomish County, Washington, USAi
Regional Level Types | |
---|---|
Helena Prospects | Prospect |
Index Mining District | Mining District |
Snohomish County | County |
Washington | State |
USA | Country |
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Latitude & Longitude (WGS84):
47° 49' 27'' North , 121° 33' 21'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
Club | Location | Distance |
---|---|---|
Darrington Rock & Gem Club | Darrington, Washington | 48km |
Mindat Locality ID:
132302
Long-form identifier:
mindat:1:2:132302:6
GUID (UUID V4):
3402cc67-9be5-4cb9-b94e-4bac4286138e
Other/historical names associated with this locality:
Tillicum Prospect
Located north of Index near the cliff known as the Town Wall. It worked spotty 1" sulfide bands in a 4' mineralized shear zone in granodiorite, and was developed by several adits aggregating 225' in length. There is no record of production.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
ⓘ Bornite Formula: Cu5FeS4 |
ⓘ Calcite Formula: CaCO3 |
ⓘ Chalcopyrite Formula: CuFeS2 |
ⓘ Pyrite Formula: FeS2 |
ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
ⓘ | Bornite | 2.BA.15 | Cu5FeS4 |
ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
ⓘ | Pyrite | 2.EB.05a | FeS2 |
Group 4 - Oxides and Hydroxides | |||
ⓘ | Quartz | 4.DA.05 | SiO2 |
Group 5 - Nitrates and Carbonates | |||
ⓘ | Calcite | 5.AB.05 | CaCO3 |
List of minerals for each chemical element
C | Carbon | |
---|---|---|
C | ⓘ Calcite | CaCO3 |
O | Oxygen | |
O | ⓘ Calcite | CaCO3 |
O | ⓘ Quartz | SiO2 |
Si | Silicon | |
Si | ⓘ Quartz | SiO2 |
S | Sulfur | |
S | ⓘ Bornite | Cu5FeS4 |
S | ⓘ Chalcopyrite | CuFeS2 |
S | ⓘ Pyrite | FeS2 |
Ca | Calcium | |
Ca | ⓘ Calcite | CaCO3 |
Fe | Iron | |
Fe | ⓘ Bornite | Cu5FeS4 |
Fe | ⓘ Chalcopyrite | CuFeS2 |
Fe | ⓘ Pyrite | FeS2 |
Cu | Copper | |
Cu | ⓘ Bornite | Cu5FeS4 |
Cu | ⓘ Chalcopyrite | CuFeS2 |
Other Regions, Features and Areas containing this locality
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