Iron Chief Mine (Iron Chief deposit; Gray Eagle group; Messenger Mine), Eagle Mountain, Eagle Mountains Mining District (Monte Negro Mining District), Eagle Mountains, Riverside County, California, USAi
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Latitude & Longitude (WGS84):
33° 51' 59'' North , 115° 34' 38'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Desert Center | 204 (2011) | 23.5km |
Mortmar | 211 (2011) | 50.7km |
Twentynine Palms | 26,025 (2017) | 53.1km |
Desert Shores | 1,104 (2011) | 66.9km |
Salton Sea Beach | 422 (2011) | 67.8km |
Mindat Locality ID:
87045
Long-form identifier:
mindat:1:2:87045:7
GUID (UUID V4):
2f78b783-a172-475f-8ba1-43195324f99d
A former Au occurrence/mine located in sec. 36, T3S, R13E, SBM, 8.4 km (5.2 miles) W of Eagle Mountain (town), along the S side of Black Eagle Mine Road, on private (patented) land. MRDS database stated accuracy for this location is 1,000 meters. Mine abandoned as of 1980.
NOTE: There are 3 USGS MRDS database files for this locality. The data presented Among them is discrepant. The geographic coordinates and T&R values presented in this Mindat file are taken from MRDS file #10213147, that states that it is in sec. 36; however, those coordinates place it in sec. 35 at a point where the topo map reflects 3 prospect pit symbols. The topo map reflects several mining symbols labeled the "Iron Chief Mine" at the geographic coordinates provided in this Mindat file, in sec. 36.
MRDS file #10099485 places this mine at 33.87948, -115.5311, in sec. 27. MRDS file #10261837 places it at 33.90174, -115.56502, and states that it is in sec. 13, where the topo map does not reflect any mining symbols.
The ore body strikes N70W and dips 45N at a width of 2.44 meters and a depth-to-bottom of 42.67 meters. Local rocks include pre-Cenozoic metasedimentary and metavolcanic rocks undivided and/or Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges).
Workings include underground openings comprised of a vertical shaft 140 feet deep and a 500 foot crosscut tunnel intersecting the shaft at the 100 foot level.
Production information: $150,000 (period values) Au (1945).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
ⓘ Actinolite Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 Colour: Long green crystals and off-white fibrous mats. Description: Many samples were field collected by Chuck Trantham from the Eagle Mountain area. David Lowe analyzed them using XRD and XRF. Associated with calcite, which was not visible without magnification. Appearance similar to Chrysotile. |
ⓘ Ankerite Formula: Ca(Fe2+,Mg)(CO3)2 |
ⓘ Chalcopyrite Formula: CuFeS2 References: |
ⓘ Dolomite Formula: CaMg(CO3)2 |
ⓘ Gold Formula: Au |
ⓘ Hematite Formula: Fe2O3 |
ⓘ Lizardite Formula: Mg3(Si2O5)(OH)4 |
ⓘ Magnetite Formula: Fe2+Fe3+2O4 |
ⓘ Pyrite Formula: FeS2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
ⓘ | Gold | 1.AA.05 | Au |
Group 2 - Sulphides and Sulfosalts | |||
ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
ⓘ | Pyrite | 2.EB.05a | FeS2 |
Group 4 - Oxides and Hydroxides | |||
ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
ⓘ | Hematite | 4.CB.05 | Fe2O3 |
Group 5 - Nitrates and Carbonates | |||
ⓘ | Ankerite | 5.AB.10 | Ca(Fe2+,Mg)(CO3)2 |
ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
Group 9 - Silicates | |||
ⓘ | Actinolite | 9.DE.10 | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
ⓘ | Lizardite | 9.ED.15 | Mg3(Si2O5)(OH)4 |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
H | ⓘ Lizardite | Mg3(Si2O5)(OH)4 |
C | Carbon | |
C | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
C | ⓘ Dolomite | CaMg(CO3)2 |
O | Oxygen | |
O | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
O | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
O | ⓘ Dolomite | CaMg(CO3)2 |
O | ⓘ Hematite | Fe2O3 |
O | ⓘ Lizardite | Mg3(Si2O5)(OH)4 |
O | ⓘ Magnetite | Fe2+Fe23+O4 |
Mg | Magnesium | |
Mg | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
Mg | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
Mg | ⓘ Dolomite | CaMg(CO3)2 |
Mg | ⓘ Lizardite | Mg3(Si2O5)(OH)4 |
Si | Silicon | |
Si | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
Si | ⓘ Lizardite | Mg3(Si2O5)(OH)4 |
S | Sulfur | |
S | ⓘ Chalcopyrite | CuFeS2 |
S | ⓘ Pyrite | FeS2 |
Ca | Calcium | |
Ca | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
Ca | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
Ca | ⓘ Dolomite | CaMg(CO3)2 |
Fe | Iron | |
Fe | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
Fe | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
Fe | ⓘ Chalcopyrite | CuFeS2 |
Fe | ⓘ Hematite | Fe2O3 |
Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
Fe | ⓘ Pyrite | FeS2 |
Cu | Copper | |
Cu | ⓘ Chalcopyrite | CuFeS2 |
Au | Gold | |
Au | ⓘ Gold | Au |
Other Databases
Link to USGS MRDS: | 10099485 |
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Other Regions, Features and Areas containing this locality
North America
- Coast MountainsMountain Range
North America PlateTectonic Plate
- Mojave DomainDomain
USA
- California
- San Bernardino MountainsMountain Range
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