Lucky Boy occurrences (Lucky Boy occurrences 2), Burnt Flat, Colfax, Colfax Mining District (Illinois Mining District), Placer County, California, USAi
| Regional Level Types | |
|---|---|
| Lucky Boy occurrences (Lucky Boy occurrences 2) | Group of Occurrences |
| Burnt Flat | Flat |
| Colfax | - not defined - |
| Colfax Mining District (Illinois Mining District) | Mining District |
| Placer County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
39° 6' 41'' North , 120° 55' 26'' West
Latitude & Longitude (decimal):
Type:
Group of Occurrences
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Colfax | 2,005 (2017) | 2.8km |
| Alta Sierra | 6,911 (2011) | 11.7km |
| Dutch Flat | 160 (2011) | 12.9km |
| Foresthill | 1,483 (2011) | 13.6km |
| Lake of the Pines | 3,917 (2011) | 14.0km |
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 |
|---|---|---|
| Nevada County Gem & Mineral Society | Grass Valley, California | 17km |
| El Dorado County Mineral and Gem Society | Placerville, California | 44km |
| Gold Country Treasure Seekers | Placerville, California | 44km |
Mindat Locality ID:
85534
Long-form identifier:
mindat:1:2:85534:2
GUID (UUID V4):
77bce07d-6b51-4353-af9a-3ae1af61e7d6
Two Cr occurrences located in the center SW¼SW¼ sec. 32, T15N, R11E, & in sec. 29, T14N, R11E, MDM, 1.0 km (0.6 mile) NE of Burnt Flat (coordinates of record) and 2.7 km (1.7 miles) ENE of Colfax, on the W canyon wall of the North Fork American River, on National Forest land (sec. 32 deposit). Owned by J. A. Carlson - sec. 32 deposit; W. F. Bettencourt sec. 29 deposit (1942). MRDS database stated accuracy for this location is 1,000 meters.
NOTE: The USGS MRDS database presents erroneous geographical coordinates for this location (121° of longitude versus 120°).
This is one of many Cr deposits/mines placed into a very large area termed the "Forest Hill Divide area" by Rynearson. That area is based on geological and topographic considerations versus mining districts and overlaps several defined districts. Those Cr occurrences within mining districts are listed under their respective districts, the remainder are listed under Rynearson’s "Forest Hill Divide area."
Local rocks include Quaternary alluvium and marine deposits.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsGallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Chromite | 4.BB.05 | Fe2+Cr3+2O4 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Chromite | Fe2+Cr23+O4 |
| Cr | Chromium | |
| Cr | ⓘ Chromite | Fe2+Cr23+O4 |
| Fe | Iron | |
| Fe | ⓘ Chromite | Fe2+Cr23+O4 |
Other Regions, Features and Areas containing this locality
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References
