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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
Regional Level Types
Iron Chief Mine (Iron Chief deposit; Gray Eagle group; Messenger Mine)Mine
Eagle MountainMountain
Eagle Mountains Mining District (Monte Negro Mining District)Mining District
Eagle MountainsMountain Range
Riverside CountyCounty
CaliforniaState
USACountry

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PhotosMapsSearch
Latitude & Longitude (WGS84):
33° 51' 59'' North , 115° 34' 38'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Desert Center204 (2011)23.5km
Mortmar211 (2011)50.7km
Twentynine Palms26,025 (2017)53.1km
Desert Shores1,104 (2011)66.9km
Salton Sea Beach422 (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 Elements

Mineral List


9 valid minerals.

Detailed 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
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
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Magnetite4.BB.05Fe2+Fe3+2O4
Hematite4.CB.05Fe2O3
Group 5 - Nitrates and Carbonates
Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Dolomite5.AB.10CaMg(CO3)2
Group 9 - Silicates
Actinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Lizardite9.ED.15Mg3(Si2O5)(OH)4

List of minerals for each chemical element

HHydrogen
H Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
H LizarditeMg3(Si2O5)(OH)4
CCarbon
C AnkeriteCa(Fe2+,Mg)(CO3)2
C DolomiteCaMg(CO3)2
OOxygen
O Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
O AnkeriteCa(Fe2+,Mg)(CO3)2
O DolomiteCaMg(CO3)2
O HematiteFe2O3
O LizarditeMg3(Si2O5)(OH)4
O MagnetiteFe2+Fe23+O4
MgMagnesium
Mg Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mg AnkeriteCa(Fe2+,Mg)(CO3)2
Mg DolomiteCaMg(CO3)2
Mg LizarditeMg3(Si2O5)(OH)4
SiSilicon
Si Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Si LizarditeMg3(Si2O5)(OH)4
SSulfur
S ChalcopyriteCuFeS2
S PyriteFeS2
CaCalcium
Ca Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Ca AnkeriteCa(Fe2+,Mg)(CO3)2
Ca DolomiteCaMg(CO3)2
FeIron
Fe Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Fe AnkeriteCa(Fe2+,Mg)(CO3)2
Fe ChalcopyriteCuFeS2
Fe HematiteFe2O3
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
CuCopper
Cu ChalcopyriteCuFeS2
AuGold
Au GoldAu

Other Databases

Link to USGS MRDS:10099485

Other Regions, Features and Areas containing this locality

North America
North America PlateTectonic Plate
USA

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

 
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