Big Six Prospect, Kasaan Peninsula, Prince of Wales Island, Ketchikan Mining District, Prince of Wales-Hyder Census Area, Alaska, USAi
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Latitude & Longitude (WGS84):
55° 28' 3'' North , 132° 10' 58'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Hollis | 112 (2011) | 30.2km |
| Thorne Bay | 483 (2017) | 32.5km |
Location: The Big Six prospect is at an elevation of about 1,200 feet, about 1.2 mile north-northwest of triangulation station Ren near the southeast tip of the Kasaan Peninsula. The prospect is about 0.5 mile west of the center of section 10, T. 74 S., R. 87 E.
Geology: The Big Six is an old prospect that was first described by Brooks in 1902 and has only been mentioned in secondary sources since. Chalcopyrite and pyrite occur in an altered zone in limestone near its contact with greenstone. Native copper occurs along joints. Workings consist of a few open cuts. Brooks' location is presumably reliable, but recent mapping in the area by by Eberlein and others (1983) shows only a large Ordovician and Silurian diorite pluton at the south end of the Kasaan Peninsula.
Workings: Open cuts.
Alteration: Limestone hostrock is altered.
Commodities (Major) - Cu
Development Status: None
Deposit Model: Chalcopyrite in altered zone in limestone.
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
4 valid minerals.
Detailed Mineral List:
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Native Copper Formula: Cu |
| ⓘ Pyrite Formula: FeS2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Copper | 1.AA.05 | Cu |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| 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 |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Pyrite | FeS2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Native Copper | Cu |
Other Databases
| Link to USGS - Alaska: | CR133 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Alexander DomainDomain
- Alexander TerraneVolcanic Arc
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