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Joker Pit, Fourmile Mining District (Timberlake Creek Mining District), Moffat County, Colorado, USAi
Regional Level Types
Joker PitPit
Fourmile Mining District (Timberlake Creek Mining District)Mining District
Moffat CountyCounty
ColoradoState
USACountry

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Latitude & Longitude (WGS84):
40° 45' 24'' North , 107° 43' 37'' West
Latitude & Longitude (decimal):
40.75667,-107.72694
GeoHash:
G#: 9x5ruee8u
GRN:
N28W59
Type:
Pit
Kรถppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Craig8,844 (2017)30.8km
Baggs431 (2017)31.6km
Hayden1,839 (2017)49.1km
Mindat Locality ID:
116246
Long-form identifier:
mindat:1:2:116246:5
GUID (UUID V4):
0


REF:Deposit:: PARKER, B.H., JR., 1974, THE PLACERS OF MOFFAT COUNTY, IN GOLD PLACERS OF COLORADO: COLORADO SCHOOL OF MINES QUART., V. 69, NO. 4, P. 150-168.
Deposit:: TWETO, OGDEN, 1976, GEOLOGIC MAP OF THE CRAIG 1X2 QUADRANGLE, NORTHWESTERN COLORADO: USGS
Commodities (Major) - REE, Titanium - Metal, Gold, Thorium, Niobium (Columbium), Iron
Deposit Type: Fossil Placer
Development Status: Producer
Host Rock Unit: Cathedral Bluffs Mbr Of Wasatch Formation, Navajo Sandstone
Structure: Washakie Basin
Host Rock: Conglomerate
Tectonic Structure: Colorado Platform

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


7 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 1 - Elements
โ“˜Native Gold1.AA.05Au
Group 4 - Oxides and Hydroxides
โ“˜Magnetite4.BB.05Fe2+Fe3+2O4
โ“˜Ilmenite4.CB.05Fe2+TiO3
โ“˜Quartz4.DA.05SiO2
โ“˜Rutile4.DB.05TiO2
โ“˜Euxenite-(Y)4.DG.05(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Group 9 - Silicates
โ“˜Zircon9.AD.30Zr(SiO4)
Unclassified
โ“˜'Monazite Group'-REE(PO4)
โ“˜'Columbite-(Fe)-Columbite-(Mn) Series'-
โ“˜'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

OOxygen
Oโ“˜ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Oโ“˜ IlmeniteFe2+TiO3
Oโ“˜ MagnetiteFe2+Fe23+O4
Oโ“˜ Monazite GroupREE(PO4)
Oโ“˜ QuartzSiO2
Oโ“˜ RutileTiO2
Oโ“˜ ZirconZr(SiO4)
Oโ“˜ Columbite-(Fe)-Columbite-(Mn) Series
Oโ“˜ Garnet GroupX3Z2(SiO4)3
SiSilicon
Siโ“˜ QuartzSiO2
Siโ“˜ ZirconZr(SiO4)
Siโ“˜ Garnet GroupX3Z2(SiO4)3
PPhosphorus
Pโ“˜ Monazite GroupREE(PO4)
CaCalcium
Caโ“˜ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
TiTitanium
Tiโ“˜ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Tiโ“˜ IlmeniteFe2+TiO3
Tiโ“˜ RutileTiO2
MnManganese
Mnโ“˜ Columbite-(Fe)-Columbite-(Mn) Series
FeIron
Feโ“˜ IlmeniteFe2+TiO3
Feโ“˜ MagnetiteFe2+Fe23+O4
Feโ“˜ Columbite-(Fe)-Columbite-(Mn) Series
YYttrium
Yโ“˜ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ZrZirconium
Zrโ“˜ ZirconZr(SiO4)
NbNiobium
Nbโ“˜ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Nbโ“˜ Columbite-(Fe)-Columbite-(Mn) Series
CeCerium
Ceโ“˜ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
TaTantalum
Taโ“˜ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
AuGold
Auโ“˜ Native GoldAu
ThThorium
Thโ“˜ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
UUranium
Uโ“˜ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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