Matilda group, Black Butte, Chuckwalla Mountains, Riverside County, California, USAi
| Regional Level Types | |
|---|---|
| Matilda group | - not defined - |
| Black Butte | Table/Butte |
| Chuckwalla Mountains | Mountain Range |
| Riverside County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
33° 33' 8'' North , 115° 25' 7'' West
Latitude & Longitude (decimal):
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Desert Center | 204 (2011) | 17.9km |
| Niland | 1,006 (2011) | 35.9km |
| Bombay Beach | 295 (2011) | 36.5km |
| Calipatria | 7,424 (2017) | 48.2km |
Mindat Locality ID:
87145
Long-form identifier:
mindat:1:2:87145:6
GUID (UUID V4):
ed66ddf5-b288-45e8-b89c-e3b58b6946c3
A former W occurrence/mine located in sec. 28, T7S, R15E, SBM, about 7.4 km W of Black Butte (summit), N of Iris Pass, in the western Chuckwalla Mountains (12 miles W of Desert Center). MRDS database stated accuracy for this location is 1,000 meters.
Mineralization is a vein deposit hosted in mica schist. The ore body strikes NE and dips 45NW. Mica schist is intruded by dioritic dikes and felsic dikes. The diorite dikes are partially schistosed. Light colored dikes are also present and are as wide as long, usually not in excess of 150 feet. Contacts of the dikes have zones of quartz, epidote, and garnet where the scheelite occurs. Local rocks include schist of various types and ages, unit 2 (Southern and West-central California).
Workings include surface openings comprised of a small open cut.
Production data are found in: Tucker, W. Burling & Reid J. Sampson (1945).
Since 1945, shipments have been made to the Metals Reserve Company stockpile, which have averaged better than 2% WO3. There are no available production figures.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
3 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 Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| β 'Garnet Group' Formula: X3Z2(SiO4)3 |
| β 'Mica Group' |
| β Quartz Formula: SiO2 |
| β Scheelite Formula: Ca(WO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| β | Quartz | 4.DA.05 | SiO2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| β | Scheelite | 7.GA.05 | Ca(WO4) |
| Group 9 - Silicates | |||
| β | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Unclassified | |||
| β | 'Mica Group' | - | |
| β | 'Garnet Group' | - | X3Z2(SiO4)3 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | Oxygen | |
| O | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | β Quartz | SiO2 |
| O | β Scheelite | Ca(WO4) |
| O | β Garnet Group | X3Z2(SiO4)3 |
| Al | Aluminium | |
| Al | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | Silicon | |
| Si | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | β Quartz | SiO2 |
| Si | β Garnet Group | X3Z2(SiO4)3 |
| Ca | Calcium | |
| Ca | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ca | β Scheelite | Ca(WO4) |
| Fe | Iron | |
| Fe | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| W | Tungsten | |
| W | β Scheelite | Ca(WO4) |
Other Databases
| Link to USGS MRDS: | 10035343 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
USA
- California
- Riverside County
- Chuckwalla Mountains
- Chuckwalla District (Pacific mining district)Mining District
- Chuckwalla Mountains
- Riverside County
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References
