Sweden Mine (Coe Mine; St Helens Mine), Spirit Lake, Skamania County, Washington, USAi
| Regional Level Types | |
|---|---|
| Sweden Mine (Coe Mine; St Helens Mine) | Mine |
| Spirit Lake | Lake |
| Skamania County | County |
| Washington | State |
| USA | Country |
Sweden Mine (Coe Mine; St Helens Mine), Spirit Lake, Mount St Helens Mining District, Washington, USA
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Latitude & Longitude (WGS84):
46° 17' 48'' North , 122° 6' 40'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Northwest 1/4 of the Northwest 1/4 of Section 6, T9N-R6E
A Cu,Au,Ag,Zn mine
This mine is located under or near the present shore of Spirit Lake.
It worked a fracture zone up to 6" in width in Spirit lake Granodiorite.
Developments included a 2,240' adit with 3 crosscuts.
It produced 14tons of ore in 1905 and 76 tons in 1929.
NOTE: This location is not accessible. It was covered by Spirit Lake when the shore was changed by the 1980 Eruption of Mt St Helens.
Tectonics: Cascade Volcanic Arc
Commodity: Metal values are highly variable along strike of vein
Deposit: Mine is in the area that was devastated during the 1980 eruption of mount st. Helens ; info.src : 1 pub lit dimensions are those given by landes and others. Fracture zone in granodiorite, several inches to 6 ft thick, consists of gouge, talc, granodiorite fragments, and quartz. In individual shoots, pyrite and chalcopyrite are the predominant ore minerals, disseminated in the vein. Vein contains 7 main ore shoots
Deposit type: Polymetallic veins
Development: One of a group of 29 claims patented by dr. H. W. Coe in 1905. Between 1900 and 1910, mount st. Helens consolidated mining co. Spent about $700,000 in an attempt to make the sweden a copper producing mine.
Rock formation(s): Spirit Lake Pluton
Ore(s): Fracture Zone
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
7 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:
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Galena Formula: PbS |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Pyrrhotite Formula: Fe1-xS |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Sphalerite Formula: ZnS |
| ⓘ Talc Formula: Mg3Si4O10(OH)2 |
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 |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| ⓘ | Talc | 9.EC.05 | Mg3Si4O10(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Talc | Mg3Si4O10(OH)2 |
| O | Oxygen | |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Talc | Mg3Si4O10(OH)2 |
| Mg | Magnesium | |
| Mg | ⓘ Talc | Mg3Si4O10(OH)2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Talc | Mg3Si4O10(OH)2 |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe1-xS |
| S | ⓘ Sphalerite | ZnS |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10047861 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Cascade RangeMountain Range
North America PlateTectonic Plate
- Cascade ArcVolcanic Arc
- Franciscan DomainDomain
USA
- Washington
- Mount St Helens Mining DistrictMining District
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