Dew Drop; Rose Prospect, Karta River Wilderness, Prince of Wales Island, Ketchikan Mining District, Prince of Wales-Hyder Census Area, Alaska, USAi
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Latitude & Longitude (WGS84):
55° 31' 11'' North , 132° 48' 18'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Hollis | 112 (2011) | 11.4km |
| Klawock | 765 (2017) | 18.6km |
| Craig | 1,248 (2017) | 22.1km |
| Thorne Bay | 483 (2017) | 25.8km |
| Hydaburg | 391 (2017) | 34.7km |
The prospect is in the Karta River Wilderness, which is closed to prospecting and mining.
Location: The prospect on the Dew Drop and Rose claims is about 0.2 mile southeast of peak 2944 at an elevation of about 2,800 feet; it is about 0.4 mile south of the center of section 21, T. 73 S., R. 83 E.
Geology: The Dew Drop and Rose claims are on a quartz vein in metamorphosed volcanic rocks near the contact of the Luck Creek Breccia and the Descon Formation, both of Silurian and Ordovician age (Eberlein and others, 1983; Brew, 1996). The vein contains galena, pyrite, and chalcopyrite (Wright and Wright, 1905, 1908; Wright, 1906, 1907; Herreid and Rose, 1966) The vein is 6 to 14 inches thick; it strikes N60W and dips 85SW. Maas and others (1991) located a 21-foot adit on the prospect but found no sign of mineralization or quartz veins; the highest gold value in their samples was 477 parts per billion. They did, however, find a possible extension of the Lucky Nell vein (CR031) about 500 feet northwest of the Dew Drop prospect; it consists of a 0.5- to 1.0-foot-wide vein with about 70 percent pyrite, sphalerite, galena, and chalcopyrite. Three samples across 0.67 feet of vein averaged 1.25 ounces of gold per ton, 126.9 ounces of silver per ton, 5.22 percent lead, and 2.38 percent zinc.
Workings: Some prospecting and at least one short adit.
Age: Unknown, other than that the vein is in Silurian or Ordovician volcanic rocks.
Commodities (Major) - Ag, Au, Cu, Pb, Zn
Development Status: None
Deposit Model: Polymetallic vein (Cox and Singer, 1986; model 22c).
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.
Detailed Mineral List:
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Galena Formula: PbS |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS - Alaska: | CR032 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Alexander DomainDomain
- Alexander TerraneVolcanic Arc
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