Log In
Silver Star Prospect, Chistochina Mining District, Valdez-Cordova Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Silver Star Prospect | Prospect |
| Chistochina Mining District | Mining District |
| Valdez-Cordova Census Area | Census Area |
| Alaska | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
61° 44' 4'' North , 143° 54' 36'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
The locality is in the Wrangell-Saint Elias National Park and Preserve.
Location: This prospect is near the summit of the ridge north of the Kotsina River. It is at an elevation about 5,300 feet, about 700 feet south-southeast of elevation 5629 (Vesna) and 1,000 feet south-southwest of the center of section 35, T. 1 S., R. 8 E. of the Copper River Meridian. This is locality 176 of MacKevett (1976) and locality 2 of MacKevett and others (1978). The location is accurate to within about 100 feet. Cobb and MacKevett (1980) included this prospect under the name 'Silver Star'.
Geology: The deposit at this prospect consists of quartz veins to 30 inches wide that are localized along faults and hanging wall fractures in Triassic Nikolai Greenstone (Moffit and Mertie, 1923; MacKevett, 1976). The veins contain argentiferous tetrahedrite, galena, sphalerite, malachite, and azurite. Samples of selected material were reported to assay 25 to 700 ounces of silver per ton and 1 to 32 percent copper (Mertie and Moffit, 1923). The deposits were explored by two adits up to 260 feet long.
Workings: The deposits were explored by two adits up to 260 feet long.
Age: Triassic or younger based on the age of the host rock.
Alteration: Oxidation of copper minerals; iron-staining.
Commodities (Major) - Ag, Cu, Pb, Zn
Development Status: Undetermined.
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:
| ⓘ Azurite Formula: Cu3(CO3)2(OH)2 |
| ⓘ Galena Formula: PbS |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Sphalerite Formula: ZnS |
| ⓘ 'Tetrahedrite Subgroup' Formula: Cu6(Cu4C2+2)Sb4S12S |
| ⓘ 'Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite' Formula: (Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
| ⓘ | 'var. Silver-bearing Tetrahedrite' | 2.GB.05 | (Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
List of minerals for each chemical element
Other Databases
| Link to USGS - Alaska: | MC020 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Wrangell MountainsMountain Range
North America PlateTectonic Plate
- Wrangellia DomainVolcanic Arc
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
