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Poland China Mine, Myer Creek Mining District, Okanogan County, Washington, USAi
| Regional Level Types | |
|---|---|
| Poland China Mine | Mine |
| Myer Creek Mining District | Mining District |
| Okanogan County | County |
| Washington | State |
| USA | Country |
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Latitude & Longitude (WGS84):
48° 58' 25'' North , 119° 7' 20'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Other/historical names associated with this locality:
Molson Mine; Overtop Mine
A gold mine west of Chesaw. The ore occurred as a vein in argillite. Development consisted of 1500' of workings and a mill. It produced more than $100,000 by 1939.
Structure: Marine Sedimentary Rocks Of The Spectacle Formation Formed Along An Active Continental Margin.
Deposit: High-grade near-surface ore contained 0.15-30 oz/ton au. Ore that was mined averaged only 0.24 oz/ton Au and 0.40 oz/ton ag. Some wall rock contained from 0.018 to 0.06 oz/ton au. Development consisted of more than 1500 feet of adits, shafts, and crosscuts. The property is on patented mining claims (moen, 1980, p. 38). ; info.src : 1 pub lit
Geology: The vein is in graphitic argillite of the permian spectacle formation of the anarchist group (moen, 1980).
Rock formation(s): Spectacle Formation Of The Anarchist Group
Ore(s): The Deposit Contains A Black To White, Northwest-Striking, East-Dipping, 2-15-Ft-Wide Quartz Vein In Graphitic Argillite. The Vein Walls Are Generally Well-Defined, But In Several Places The Vein Gradually Grades Into Argillite; The Vein Also Contains Fragments Of Argillite. Locally, The Vein Is Offset By North- And Northeast-Trending, High-Angle Faults. Ore Minerals Are Sparsely Disseminated In Quartz (Moen, 1980, P. 37).
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.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Galena Formula: PbS |
| ⓘ Marcasite Formula: FeS2 |
| ⓘ 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 | |||
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Marcasite | 2.EB.10a | 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 | ⓘ Galena | PbS |
| S | ⓘ Marcasite | FeS2 |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Marcasite | FeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10056024 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Columbia MountainsMountain Range
North America PlateTectonic Plate
- Okanagan TerraneOphiolite Complex
- Okanogan DomainDomain
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