Trio Chrome Company placer, Latrobe, Latrobe Mining District, El Dorado County, California, USAi
| Regional Level Types | |
|---|---|
| Trio Chrome Company placer | Placer |
| Latrobe | Unincorporated Community |
| Latrobe Mining District | Mining District |
| El Dorado County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
38° 31' 26'' North , 120° 55' 52'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Plymouth | 960 (2017) | 8.9km |
| Drytown | 167 (2011) | 11.4km |
| Rancho Murieta | 5,488 (2011) | 14.4km |
| Amador City | 189 (2017) | 14.9km |
| Fiddletown | 235 (2011) | 15.4km |
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 |
|---|---|---|
| Amador County Gem & Mineral Society | Sutter Creek, California | 18km |
| El Dorado County Mineral and Gem Society | Placerville, California | 26km |
| Gold Country Treasure Seekers | Placerville, California | 26km |
| Roseville Rock Rollers | Roseville, California | 40km |
| Fossils for Fun Society, Inc. | North Highlands, California | 42km |
A placer Cr deposit located in the NE¼ sec. 25, T8N, R9E, MDM, about 6.3 km SE of Latrobe, on the N side of the Cosumnes River, on private land. MRDS database stated accuracy for this location is 500 meters.
Several acres of gravel and hill wash 1 to 10 feet deep cover the bottom and sides of a shallow gully tributary to the river. Local rocks include ultramafic rocks, chiefly Mesozoic, unit 2 (Western Sierra Nevada and Klamath Mountains).
Workings include surface operations comprised of bulldozer scrapings, mostly exploratory work.
No production is known. Operators report that each ton of soil and gravel contains about 30 pounds of chromite sand.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Chromite Formula: Fe2+Cr3+2O4 Description: Occurs as chromite sand in soil and gravels. |
Gallery:
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 Databases
| Link to USGS MRDS: | 10029674 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Foothills-Wallowa DomainDomain
- Sierra Nevada BatholithVolcanic Arc
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file #0060170069
