Jack Forth claims, Virgilia, Edmanton Mining District (Meadow Valley Mining District), Plumas County, California, USAi
| Regional Level Types | |
|---|---|
| Jack Forth claims | Group of Claims |
| Virgilia | - not defined - |
| Edmanton Mining District (Meadow Valley Mining District) | Mining District |
| Plumas County | County |
| California | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
40° 1' 33'' North , 121° 7' 33'' West
Latitude & Longitude (decimal):
Type:
Group of Claims
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Meadow Valley | 464 (2011) | 12.0km |
| Quincy | 1,728 (2017) | 18.2km |
| Greenville | 1,129 (2011) | 19.5km |
| Crescent Mills | 196 (2011) | 19.9km |
| East Quincy | 2,489 (2011) | 21.9km |
Mindat Locality ID:
86292
Long-form identifier:
mindat:1:2:86292:6
GUID (UUID V4):
a95e4f45-a9fc-4760-b288-dbbb0600ae9f
A former Cr mine located in sec. 18, T25N, R8E, MDM, 1.9 km (6,200 feet) WNW of Virgilia, along the East Branch North Fork Feather River, near its confluence with Rich Gulch, on National Forest land. Also located in secs. 22 & 34. Discovered by Mr. Jack Forth. Owned by Mr. Jack Forth and operated by S. R. Weeks (1943, 1944). Year of last production 1944. MRDS database stated accuracy for this location is 1,000 meters.
Local rocks include ultramafic rocks, chiefly Mesozoic, unit 2 (Western Sierra Nevada and Klamath Mountains).
Production data are found in: Rynearson (1953): 292. Most, if not all, ore came from the deposit in sec. 18.
Assay data: ore averaged 36.28% Cr2O3, 12.24% Fe; Cr to Fe ratio of 2.03:__. NOTE: data truncated by the MRDS database.
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 Databases
| Link to USGS MRDS: | 10098568 |
|---|
Other Regions, Features and Areas containing this locality
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0060630167
