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Monument No. 1 Mine, Monument No. 1 channel (Channel No. 36), Mystery Valley, Mineral Mining District, Navajo County, Arizona, USAi
Regional Level Types
Monument No. 1 MineMine
Monument No. 1 channel (Channel No. 36)Channel
Mystery ValleyBasin
Mineral Mining DistrictMining District
Navajo CountyCounty
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
36° 56' 54'' North , 110° 13' 49'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Oljato-Monument Valley154 (2017)5.5km
Oljato-Monument Valley674 (2016)9.3km
Kayenta5,189 (2011)24.6km
Dennehotso746 (2011)36.0km
Halchita266 (2011)36.2km
Mindat Locality ID:
3364
Long-form identifier:
mindat:1:2:3364:3
GUID (UUID V4):
0


A U-V occurrence/mine located in the NE¼ sec. 24, T41N, R19E, G&SRM (Agathla Peak 15 minute topo map), in the Monument No. 1 channel (paleochannel), 1.7 miles S of Gouldings Well, on the ridge W of Kayenta-Mexican Hat Road. Started in 1942 and worked intermittently until 1950. Reopened 1954. Operated by the Vanadium Corporation of America during the period 1942-1950.

Mineralization is a U-V-Cu-Mo deposit hosted in Late Triassic sandstone and conglomerate of the Shinarump Conglomerate Member of the Chinle Formation, in the channel that trends N10W and is some 250 feet wide and 50 feet deep. The ore body is lenticular, 5.49 meters thick, 22.86 meters wide and 205.74 meters long. The channel is filled with medium-grained, massive sandstone. Controls for ore emplacement included "trashy" conglomerate channels near silicified wood, carbonaceous matter, & clay. Alteration (local) includes an unoxidized core surrounded by oxidized mineralization. Local rocks include rocks of the Chinle Formation.

The possible significance of the altered zone has been investigated (Alice D. Weeks, written communication, 1952). Specimens of both the red unaltered and the gray altered Moenkopi formation were chemically analyzed. Mrs. Weeks reports:

At Monument No. 1 mine, both red and gray clay contain quartz, hydromica, chlorite, and kaolinite. Chemical determinations of total iron, ferric and ferrous iron, titanium dioxide, and vanadium pentoxide, made by R. G. Milkey, showed that in all suites of samples total iron and ferric iron are higher in the red than in the adjacent gray sample. Although the ferrous-ferric ratio is higher in all the gray samples than in the adjacent red clay, the ferrous iron does not vary significantly between the red and gray of each set. To alter the red clay to gray, only l percent more or less of ferric iron pigment would have to be leached from the red. Hematite is too small in quantity or too fine grained to show in X-ray patterns of natural red clays.

Mrs. Weeks sought but found no evidence for or against a relationship of the altered zone to ore-mineralizing solutions.


Workings include unspecified underground openings.

Production was a few hundred tons of V ore during the period 1942-1944. Several thousand tons of of ore were produced during the period 1952-1956.

Analytical data results: V:U = 2.5:1. 10 MR/hour maximum or 0.25% to 0.5% U.

Reserve resource information: Some mineralization remains, but too small to justify further exploration.

Note on minerals:
Specimens of volborthite and tangeite (formerly "calciovolborthite") from here should be analyzed. There are three visually indistinguishable minerals reported: volborthite, tangeite, and vésigniéite. It's presently unclear if all of the species actually occur at the locality, although vésigniéite was recently confirmed with XEDS (see: https://www.mindat.org/photo-1018025.html ) on a specimen originally labeled as tangeite.

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


26 valid minerals.

Detailed Mineral List:

'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Autunite
Formula: Ca(UO2)2(PO4)2 · 10-12H2O
Azurite
Formula: Cu3(CO3)2(OH)2
Calcite
Formula: CaCO3
Carnotite
Formula: K2(UO2)2(VO4)2 · 3H2O
References:
'Chlorite Group'
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Coffinite
Formula: U(SiO4) · nH2O
Corvusite
Formula: (Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
Hewettite
Formula: CaV6O16 · 9H2O
References:
Jarosite
Formula: KFe3+3(SO4)2(OH)6
Description: Occurs in largely oxidized U-V ores.
Kaolinite
Formula: Al2(Si2O5)(OH)4
'Limonite'
Malachite
Formula: Cu2(CO3)(OH)2
Metatorbernite
Formula: Cu(UO2)2(PO4)2 · 8H2O
Metatyuyamunite
Formula: Ca(UO2)2(VO4)2 · 3H2O
Montmorillonite ?
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Montroseite
Formula: (V3+,Fe3+)O(OH)
References:
'Petrified Wood'
Description: Occurs as inclusions in sedimentary rocks.
Pyrite
Formula: FeS2
Rauvite
Formula: Ca(UO2)2(V10O28) · 16H2O
Roscoelite
Formula: KV3+2(AlSi3O10)(OH)2
Santafeite
Formula: (Na,Ca,Sr)12(Mn2+,Fe3+,Al,Mg)8Mn4+8(VO4)16(OH,O)20 · 8H2O
Description: Occurs as massive veinlets that cut sandstone in one large chunk of ore.
Tangeite
Formula: CaCu(VO4)(OH)
Torbernite
Formula: Cu(UO2)2(PO4)2 · 12H2O
Tyuyamunite
Formula: Ca(UO2)2(VO4)2 · 5-8H2O
References:
Uraninite
Formula: UO2
Vésigniéite
Formula: BaCu3(VO4)2(OH)2
Volborthite
Formula: Cu3(V2O7)(OH)2 · 2H2O
Zippeite
Formula: K3(UO2)4(SO4)2O3(OH) · 3H2O

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Uraninite4.DL.05UO2
Montroseite4.FD.10(V3+,Fe3+)O(OH)
Carnotite4.HB.05K2(UO2)2(VO4)2 · 3H2O
Metatyuyamunite4.HB.25Ca(UO2)2(VO4)2 · 3H2O
Tyuyamunite4.HB.25Ca(UO2)2(VO4)2 · 5-8H2O
Rauvite4.HB.40Ca(UO2)2(V10O28) · 16H2O
Hewettite4.HE.15CaV6O16 · 9H2O
Corvusite4.HE.20(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Azurite5.BA.05Cu3(CO3)2(OH)2
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Jarosite7.BC.10KFe3+3(SO4)2(OH)6
Zippeite7.EC.05K3(UO2)4(SO4)2O3(OH) · 3H2O
Group 8 - Phosphates, Arsenates and Vanadates
Tangeite8.BH.35CaCu(VO4)(OH)
Vésigniéite8.BH.45BaCu3(VO4)2(OH)2
Santafeite8.DM.40(Na,Ca,Sr)12(Mn2+,Fe3+,Al,Mg)8Mn4+8(VO4)16(OH,O)20 · 8H2O
Autunite8.EB.05Ca(UO2)2(PO4)2 · 10-12H2O
Torbernite8.EB.05Cu(UO2)2(PO4)2 · 12H2O
Metatorbernite8.EB.10Cu(UO2)2(PO4)2 · 8H2O
Volborthite8.FD.05Cu3(V2O7)(OH)2 · 2H2O
Group 9 - Silicates
Coffinite9.AD.30U(SiO4) · nH2O
Roscoelite9.EC.15KV3+2(AlSi3O10)(OH)2
Montmorillonite ?9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Unclassified
'Chlorite Group'-
'Limonite'-
'Petrified Wood'-
'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
H AutuniteCa(UO2)2(PO4)2 · 10-12H2O
H AzuriteCu3(CO3)2(OH)2
H CarnotiteK2(UO2)2(VO4)2 · 3H2O
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
H CoffiniteU(SiO4) · nH2O
H Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
H HewettiteCaV6O16 · 9H2O
H JarositeKFe33+(SO4)2(OH)6
H KaoliniteAl2(Si2O5)(OH)4
H MalachiteCu2(CO3)(OH)2
H MetatorberniteCu(UO2)2(PO4)2 · 8H2O
H MetatyuyamuniteCa(UO2)2(VO4)2 · 3H2O
H Montroseite(V3+,Fe3+)O(OH)
H Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
H RauviteCa(UO2)2(V10O28) · 16H2O
H RoscoeliteKV23+(AlSi3O10)(OH)2
H Santafeite(Na,Ca,Sr)12(Mn2+,Fe3+,Al,Mg)8Mn84+(VO4)16(OH,O)20 · 8H2O
H TorberniteCu(UO2)2(PO4)2 · 12H2O
H TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
H TangeiteCaCu(VO4)(OH)
H VésigniéiteBaCu3(VO4)2(OH)2
H VolborthiteCu3(V2O7)(OH)2 · 2H2O
H ZippeiteK3(UO2)4(SO4)2O3(OH) · 3H2O
H ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
C AzuriteCu3(CO3)2(OH)2
C CalciteCaCO3
C MalachiteCu2(CO3)(OH)2
OOxygen
O AutuniteCa(UO2)2(PO4)2 · 10-12H2O
O AzuriteCu3(CO3)2(OH)2
O CalciteCaCO3
O CarnotiteK2(UO2)2(VO4)2 · 3H2O
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
O CoffiniteU(SiO4) · nH2O
O Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
O HewettiteCaV6O16 · 9H2O
O JarositeKFe33+(SO4)2(OH)6
O KaoliniteAl2(Si2O5)(OH)4
O MalachiteCu2(CO3)(OH)2
O MetatorberniteCu(UO2)2(PO4)2 · 8H2O
O MetatyuyamuniteCa(UO2)2(VO4)2 · 3H2O
O Montroseite(V3+,Fe3+)O(OH)
O Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
O RauviteCa(UO2)2(V10O28) · 16H2O
O RoscoeliteKV23+(AlSi3O10)(OH)2
O Santafeite(Na,Ca,Sr)12(Mn2+,Fe3+,Al,Mg)8Mn84+(VO4)16(OH,O)20 · 8H2O
O TorberniteCu(UO2)2(PO4)2 · 12H2O
O TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
O TangeiteCaCu(VO4)(OH)
O UraniniteUO2
O VésigniéiteBaCu3(VO4)2(OH)2
O VolborthiteCu3(V2O7)(OH)2 · 2H2O
O ZippeiteK3(UO2)4(SO4)2O3(OH) · 3H2O
O ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
F ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Na Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
Na Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Na Santafeite(Na,Ca,Sr)12(Mn2+,Fe3+,Al,Mg)8Mn84+(VO4)16(OH,O)20 · 8H2O
MgMagnesium
Mg Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
Mg Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Mg Santafeite(Na,Ca,Sr)12(Mn2+,Fe3+,Al,Mg)8Mn84+(VO4)16(OH,O)20 · 8H2O
AlAluminium
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Al KaoliniteAl2(Si2O5)(OH)4
Al Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Al RoscoeliteKV23+(AlSi3O10)(OH)2
Al Santafeite(Na,Ca,Sr)12(Mn2+,Fe3+,Al,Mg)8Mn84+(VO4)16(OH,O)20 · 8H2O
SiSilicon
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Si CoffiniteU(SiO4) · nH2O
Si KaoliniteAl2(Si2O5)(OH)4
Si Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Si RoscoeliteKV23+(AlSi3O10)(OH)2
PPhosphorus
P AutuniteCa(UO2)2(PO4)2 · 10-12H2O
P MetatorberniteCu(UO2)2(PO4)2 · 8H2O
P TorberniteCu(UO2)2(PO4)2 · 12H2O
P ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
S JarositeKFe33+(SO4)2(OH)6
S PyriteFeS2
S ZippeiteK3(UO2)4(SO4)2O3(OH) · 3H2O
ClChlorine
Cl ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
K CarnotiteK2(UO2)2(VO4)2 · 3H2O
K Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
K JarositeKFe33+(SO4)2(OH)6
K RoscoeliteKV23+(AlSi3O10)(OH)2
K ZippeiteK3(UO2)4(SO4)2O3(OH) · 3H2O
CaCalcium
Ca AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Ca CalciteCaCO3
Ca Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
Ca HewettiteCaV6O16 · 9H2O
Ca MetatyuyamuniteCa(UO2)2(VO4)2 · 3H2O
Ca Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Ca RauviteCa(UO2)2(V10O28) · 16H2O
Ca Santafeite(Na,Ca,Sr)12(Mn2+,Fe3+,Al,Mg)8Mn84+(VO4)16(OH,O)20 · 8H2O
Ca TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
Ca TangeiteCaCu(VO4)(OH)
Ca ApatiteCa5(PO4)3(Cl/F/OH)
VVanadium
V CarnotiteK2(UO2)2(VO4)2 · 3H2O
V Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
V HewettiteCaV6O16 · 9H2O
V MetatyuyamuniteCa(UO2)2(VO4)2 · 3H2O
V Montroseite(V3+,Fe3+)O(OH)
V RauviteCa(UO2)2(V10O28) · 16H2O
V RoscoeliteKV23+(AlSi3O10)(OH)2
V Santafeite(Na,Ca,Sr)12(Mn2+,Fe3+,Al,Mg)8Mn84+(VO4)16(OH,O)20 · 8H2O
V TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
V TangeiteCaCu(VO4)(OH)
V VésigniéiteBaCu3(VO4)2(OH)2
V VolborthiteCu3(V2O7)(OH)2 · 2H2O
MnManganese
Mn Santafeite(Na,Ca,Sr)12(Mn2+,Fe3+,Al,Mg)8Mn84+(VO4)16(OH,O)20 · 8H2O
FeIron
Fe Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
Fe JarositeKFe33+(SO4)2(OH)6
Fe Montroseite(V3+,Fe3+)O(OH)
Fe PyriteFeS2
Fe Santafeite(Na,Ca,Sr)12(Mn2+,Fe3+,Al,Mg)8Mn84+(VO4)16(OH,O)20 · 8H2O
CuCopper
Cu AzuriteCu3(CO3)2(OH)2
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cu MalachiteCu2(CO3)(OH)2
Cu MetatorberniteCu(UO2)2(PO4)2 · 8H2O
Cu TorberniteCu(UO2)2(PO4)2 · 12H2O
Cu TangeiteCaCu(VO4)(OH)
Cu VésigniéiteBaCu3(VO4)2(OH)2
Cu VolborthiteCu3(V2O7)(OH)2 · 2H2O
SrStrontium
Sr Santafeite(Na,Ca,Sr)12(Mn2+,Fe3+,Al,Mg)8Mn84+(VO4)16(OH,O)20 · 8H2O
BaBarium
Ba VésigniéiteBaCu3(VO4)2(OH)2
UUranium
U AutuniteCa(UO2)2(PO4)2 · 10-12H2O
U CarnotiteK2(UO2)2(VO4)2 · 3H2O
U CoffiniteU(SiO4) · nH2O
U MetatorberniteCu(UO2)2(PO4)2 · 8H2O
U MetatyuyamuniteCa(UO2)2(VO4)2 · 3H2O
U RauviteCa(UO2)2(V10O28) · 16H2O
U TorberniteCu(UO2)2(PO4)2 · 12H2O
U TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
U UraniniteUO2
U ZippeiteK3(UO2)4(SO4)2O3(OH) · 3H2O

Other Databases

Link to USGS MRDS:10102487

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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