Pine Tree Mine (Pine Tree claim), Custer County, Colorado, USAi
| Regional Level Types | |
|---|---|
| Pine Tree Mine (Pine Tree claim) | Claim |
| Custer County | County |
| Colorado | State |
| USA | Country |
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Latitude & Longitude (WGS84):
38° 11' 12'' North , 105° 17' 24'' West
Latitude & Longitude (decimal):
Locality type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Silver Cliff | 591 (2017) | 14.8km |
| Westcliffe | 577 (2017) | 16.4km |
| Coal Creek | 341 (2017) | 23.0km |
| Rockvale | 498 (2017) | 23.1km |
| Williamsburg | 656 (2017) | 24.8km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Canon City Geology Club | Canon City, Colorado | 29km |
Other/historical names associated with this locality:
Greenwood property
A former Th-Ba(baryte) occurrence/claim/mine located in the NEΒΌNEΒΌ sec. 35, T21S, R71W, 6th Principal Meridian, on Greenwood property, E of Bear Peak, 3 miles N of the Haputa Ranch, N of Bear Gulch and NW of Dry Lake, 4.9 miles N34E of Querida. Discovered in 1952. Operated by William Klein and Fred Jones (1953-). The USGS MRDS database stated accuracy for this locality is 50 meters.
Mineralization is a Th-Ba(baryte) deposit (Mineral occurrence model information: Model code: 30; USGS model code: 11d; Deposit model name: Thorium-rare-earth veins), hosted in Paleoproterozoic gneiss. The ore body strikes N60W (vein) and dips steeply SW (vein), at a width of 1.22 meters and a length of 182.88 meters, and having a depth-to-top of 0 meters. Controls for ore emplacement included a NW-trending fault zone. Ore is in mineralized veins and shear zones. Th occurs as coatings or disseminated through dikes. Pure thorite G.T. 2 inches in diameter found in baryte masses. Local rocks include felsic and hornblendic gneisses, either separate or interlayered.
Regional geologic structures include the Wet Mountains. Local structures include NW-trending shear zones.
Tectonic Structure: Central Cordillera (Southern Rocky Mountains)
Workings include surface and underground openings with an overall depth of 18.29 meters, an overall length of 182.88 meters and an overall width of 1.22 meters and comprised of 5 shafts and 2 prospect pits. The underground workings are mostly caved or filled with water.
Analytical data results: 0.008 to 0.058% equivalent U; 0.001 to 0.002% U, 0.03 to 0.32% equivalent ThO2.
Reported production was 400 pounds of hand sorted thorite.
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:
| β Baryte Formula: BaSO4 Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Fluorite Formula: CaF2 Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Galena Formula: PbS Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Hematite Formula: Fe2O3 Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Hematite var. Specularite Formula: Fe2O3 Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β 'Limonite' Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Pyrite Formula: FeS2 Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Quartz Formula: SiO2 Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Thorite Formula: Th(SiO4) Reference: USGS: Geological Survey Circular 290 |
| β Thorite var. Thorogummite Formula: (Th,U)(SiO4)1-x(OH)4x Reference: Minerals of Colorado (1997) E.B. Eckel |
| β 'UM1959-05-SiO:FeHTh' Reference: Christman, R.A., Brock, M.R., Pearson, R.C., Singewald, Q.D. (1959) Geology and thorium deposits of the Wet Mountains, Colorado - a progress report. U.S. Geological Survey, Bulletin 1072-H. 491-535 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| β | Galena | 2.CD.10 | PbS |
| β | Pyrite | 2.EB.05a | FeS2 |
| Group 3 - Halides | |||
| β | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| β | Hematite | 4.CB.05 | Fe2O3 |
| β | var. Specularite | 4.CB.05 | Fe2O3 |
| β | Quartz | 4.DA.05 | SiO2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| β | Baryte | 7.AD.35 | BaSO4 |
| Group 9 - Silicates | |||
| β | Thorite | 9.AD.30 | Th(SiO4) |
| β | var. Thorogummite | 9.AD.30 | (Th,U)(SiO4)1-x(OH)4x |
| Unclassified Minerals, Rocks, etc. | |||
| β | 'Limonite' | - | |
| β | 'UM1959-05-SiO:FeHTh' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Thorite var. Thorogummite | (Th,U)(SiO4)1-x(OH)4x |
| O | Oxygen | |
| O | β Baryte | BaSO4 |
| O | β Hematite var. Specularite | Fe2O3 |
| O | β Quartz | SiO2 |
| O | β Thorite var. Thorogummite | (Th,U)(SiO4)1-x(OH)4x |
| O | β Thorite | Th(SiO4) |
| O | β Hematite | Fe2O3 |
| F | Fluorine | |
| F | β Fluorite | CaF2 |
| Si | Silicon | |
| Si | β Quartz | SiO2 |
| Si | β Thorite var. Thorogummite | (Th,U)(SiO4)1-x(OH)4x |
| Si | β Thorite | Th(SiO4) |
| S | Sulfur | |
| S | β Baryte | BaSO4 |
| S | β Pyrite | FeS2 |
| S | β Galena | PbS |
| Ca | Calcium | |
| Ca | β Fluorite | CaF2 |
| Fe | Iron | |
| Fe | β Pyrite | FeS2 |
| Fe | β Hematite var. Specularite | Fe2O3 |
| Fe | β Hematite | Fe2O3 |
| Ba | Barium | |
| Ba | β Baryte | BaSO4 |
| Pb | Lead | |
| Pb | β Galena | PbS |
| Th | Thorium | |
| Th | β Thorite var. Thorogummite | (Th,U)(SiO4)1-x(OH)4x |
| Th | β Thorite | Th(SiO4) |
| U | Uranium | |
| U | β Thorite var. Thorogummite | (Th,U)(SiO4)1-x(OH)4x |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Christman, R.A., Heyman, A.M., Dellwig, L.F, Gott, G.B. (1953), Thorium Investigations 1950-52, Wet Mountains, Colorado. USGS Circular 290: 17-19.
Christman, R.A., Brock, M.R., Pearson, R.C., Singewald, Q.D. (1959), Geology and thorium deposits of the Wet Mountains, Colorado - a progress report. USGS Bulletin 1072-H: 491-535.
Brock, M.R., Singewald, Q.D. (1968), Geologic map of the Mount Tyndall Quadrangle, Custer County, Colorado. USGS Map GQ-596, 1:24,000.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10012878.
USGS MRDS ID #D008866.
Other Databases
| Link to USGS MRDS: | 10012878 |
|---|
Other Regions, Features and Areas containing this locality
North America
- Rocky MountainsMountain Range
North America PlateTectonic Plate
- Great Plains DomainDomain
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