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Frank Hill Mine (Star Mine), Pinto Mountain, Riverside County, California, USAi
Regional Level Types
Frank Hill Mine (Star Mine)Mine
Pinto MountainMountain
Riverside CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
33° 59' 20'' North , 115° 46' 53'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Twentynine Palms26,025 (2017)29.9km
Indio Hills972 (2011)45.1km
Desert Center204 (2011)46.6km
Coachella44,635 (2017)49.9km
Indio87,533 (2017)50.0km
Mindat Locality ID:
86939
Long-form identifier:
mindat:1:2:86939:0
GUID (UUID V4):
7a461229-e537-4cf9-bbd1-6e8c8582bbde


A Au occurrence located in the SE¼SW¼ sec. 13, T2S, R11E, SBM, 4.3 km (2.6 miles) NNE of Pinto Mountain (coordinates of record) (6 miles S of New Dale (site) [San Bernardino County]). MRDS database stated accuracy for this location is 10 meters.

NOTE: USGS MRDS database file #10064441 presents geographic coordinates placing this mine in sec. 32, with an accompanying note: "Joshua Tree Wilderness. East slope of Pinto Mountains. Used center of section 32 for lat-long. Land status value calculated 7-94 using GIS overlay analysis with USFS (U.S. Forest Service) land ownership boundaries, 1:126,720 scale." The verbiage seems to state that the selection of the coordinates was arbitrary, particularly since the coordinates presented in MRDS file #10213154 place this mine exactly on the spot on the topo map where there is a shaft symbol labeled "Star Mine," outside the boundaries of the National Park. The coordinates from the latter MRDS file are presented in this Mindat file.

Mineralization is a quartz vein deposit hosted in granite. The ore body strikes N-S and dips 40W at a width of 1.22 meters. Local rocks include Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges).

Workings include underground openings comprised of a 225 foot inclined shaft with drifts at 50, 100 and 200 foot levels.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


4 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 Diagram

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Malachite5.BA.10Cu2(CO3)(OH)2
Group 9 - Silicates
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1

List of minerals for each chemical element

HHydrogen
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
H MalachiteCu2(CO3)(OH)2
CCarbon
C MalachiteCu2(CO3)(OH)2
OOxygen
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
O MalachiteCu2(CO3)(OH)2
O QuartzSiO2
AlAluminium
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
SiSilicon
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Si QuartzSiO2
SSulfur
S PyriteFeS2
FeIron
Fe PyriteFeS2
CuCopper
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cu MalachiteCu2(CO3)(OH)2

Other Databases

Link to USGS MRDS:10064441

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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