East Point Mine, Hope Mining District, Kenai Peninsula Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| East Point Mine | Mine |
| Hope Mining District | Mining District |
| Kenai Peninsula Borough | Borough |
| Alaska | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
60° 26' 50'' North , 149° 16' 44'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Moose Pass | 219 (2014) | 6.7km |
| Primrose | 111 (2006) | 8.0km |
| Bear Creek | 1,956 (2017) | 32.1km |
| Seward | 2,790 (2017) | 39.2km |
| Girdwood | 2,250 (2017) | 55.4km |
Location: The mine is located approximately 3 miles east of the Seward Highway on the north side of Falls Creek at an elevation of 4,500 feet. It is about half a mile north of the Skeen-Lechner mine (SR207). It is situated in the SE1/4 section 9, T. 4 N., R. 1 E., of the Seward Meridian. This is location 74 of Tysdal (1978 [MF-880-A]) and location S-226 of Jansons and others (1984). This location is accurate to within 300 feet.
Geology: The mine has produced from a single quartz-pyrite-arsenopyrite vein that strikes N55E and dips 45-60SE (O'Neill, 1960). Bedrock in the area consists of slate and graywacke of the Valdez Group of Late Cretaceous age (Cobb and Tysdal, 1980). Where the vein was worked, it was 6 feet thick, although it pinched out at both ends. The workings consist of 100 feet of drift and a 70-foot winze and stoping (Hoekzema and Sherman, 1983). Data from smelter returns and sampling complied by O'Neill (1960) for the mined section of the vein indicated a head grade of 4.92 ounces of gold per ton and 1.37 ounces of silver per ton.
Workings: The workings consist of 100 feet of drift and a 70-foot winze and stoping (Hoekzema and Sherman, 1983). Data from smelter returns and sampling complied by O'Neill (1960) of the mined section of the vein indicated a head grade of 4.92 ounces of gold per ton and 1.37 ounces of silver per ton. Total production was estimated to be 1,725 ounces of gold and 479 ounces of silver (Hoekzema and Sherman, 1983).
Age: Cretaceous or younger; the vein cuts rocks of the Valdez Group of Late Cretaceous age.
Production: Total production was estimated to be 1,725 ounces of gold and 479 ounces of silver (Hoekzema and Sherman, 1983).
Reserves: The mine has a reserve of 3,700 tons of ore containing 2.35 ounces of gold per ton and 0.5 ounce of silver per ton (O'Neill, 1960).
Commodities (Major) - Au
Development Status: Yes; small
Deposit Model: Low-sulfide Au-quartz vein (Cox and Singer, 1986; model 36a)
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:
| ⓘ Arsenopyrite Formula: FeAsS |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Native Gold Formula: Au |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| 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 | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Pyrite | FeS2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Fe | Iron | |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Pyrite | FeS2 |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS - Alaska: | SR205 |
|---|
Other Regions, Features and Areas containing this locality
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.
