Rao Mine, Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USAi
| Regional Level Types | |
|---|---|
| Rao Mine | Mine |
| Alleghany | - not defined - |
| Alleghany Mining District (Forest Mining District) | Mining District |
| Sierra County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
39° 28' 33'' North , 120° 50' 7'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Downieville | 282 (2011) | 9.3km |
| Washington | 185 (2011) | 13.3km |
| Pike | 134 (2011) | 14.5km |
| Camptonville | 158 (2011) | 18.5km |
| Sierra City | 221 (2011) | 20.0km |
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 | 35km |
Mindat Locality ID:
93556
Long-form identifier:
mindat:1:2:93556:9
GUID (UUID V4):
000794d0-ce80-42d1-ba1f-949b916f68dd
A former lode Au occurrence/mine located in the NE¼ (estimated) sec. 34, T19N, R10E, MDM, 1.0 km (0.6 mile) NE of Alleghany, along the North Fork Kanaka Creek, on National Forest land. MRDS database stated accuracy for this location is 500 meters.
Mineralization is a vein deposit hosted in amphibolite, Late Permian schist and serpentinite. The ore body strikes NE and dips 60SW. The amphibolite schist country rock is cut by a serpentine dike that, on the NE contact, is altered to limonitic gossan, resulting from the oxidation of Fe-bearing carbonate, from Tertiary gravels almost to the creek. A second little quartz vein strikes W85N and dips approximately 85NE, in the upper part. 300 feet SE, a third vein strikes NW and dips 60SW. Local rocks include undivided pre-Cenozoic metavolcanic rocks, unit 2 (undivided).
Workings include unspecified underground openings.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ 'Amphibole Supergroup' Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 Description: Occurs in amphibolite schist. |
| ⓘ Gold Formula: Au |
| ⓘ 'Limonite' |
| ⓘ Quartz Formula: SiO2 |
| ⓘ 'Serpentine Subgroup' Formula: D3[Si2O5](OH)4 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Unclassified | |||
| ⓘ | 'Amphibole Supergroup' | - | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| H | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| O | Oxygen | |
| O | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| F | Fluorine | |
| F | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Al | Aluminium | |
| Al | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Si | Silicon | |
| Si | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| Cl | Chlorine | |
| Cl | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Ti | Titanium | |
| Ti | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
Other Regions, Features and Areas containing this locality
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file #0060910254
