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Chicago Claim, Mount Margaret, Skamania County, Washington, USAi
| Regional Level Types | |
|---|---|
| Chicago Claim | Claim |
| Mount Margaret | Mountain |
| Skamania County | County |
| Washington | State |
| USA | Country |
Chicago Claim, Mount Margaret, Mount St Helens Mining District, Washington, USA
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Latitude & Longitude (WGS84):
46° 18' 33'' North , 122° 5' 17'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
NW 1/4 of Section 32, T10,R6E
A Cu,Au,Ag,Zn claim
This claim is located 2 1/2 miles NE of Spirit Lake
It worked a 8" vein in grandiorite.
Developments include a 200' adit.
Tectonics: Cascade Volcanic Arc
Commodity: Landes (1902), refered to an incompleted crosscut that was to intersect vein at a depth of 600 ft, where vein was said to be 25 ft thick and to carry a maximum value of $60/ton. More recent literature makes no mention of the crosscut and cites considerably lower values.
Deposit: Upper adit, on chicago no 1 claim, was driven into a 2 ft thick iron-oxide-rich gouge zone. Lower adit intersects an 8 ft thick, sparsely mineralized quartz vein. Location map available, moen (1977). ; info.src : 1 pub lit
Deposit type: Polymetallic veins
Development: No evidence that claims have been worked since early 1900's. No recorded production
Geology: Huntting gives host rock As granodiorite rather than andesite
Rock formation(s): Spirit Lake Pluton
Ore(s): Fault Zones
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:
| ⓘ Arsenopyrite Formula: FeAsS |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Copper Formula: Cu |
| ⓘ Galena Formula: PbS |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Copper | 1.AA.05 | Cu |
| 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 |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| 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 | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| Fe | Iron | |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Copper | Cu |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10047838 |
|---|
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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