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Little Green Monster Variscite Mine, Clay Canyon, Fairfield, Sunshine Mining District, Utah County, Utah, USAi
Regional Level Types
Little Green Monster Variscite MineMine (Reclaimed)
Clay CanyonCanyon
FairfieldTown
Sunshine Mining DistrictMining District
Utah CountyCounty
UtahState
USACountry

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Latitude & Longitude (WGS84):
40° 16' 33'' North , 112° 10' 10'' West
Latitude & Longitude (decimal):
Type:
Mine (Reclaimed) - last checked 2019
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Fairfield130 (2017)6.7km
Cedar Fort383 (2017)7.9km
Cedar Valley871 (2013)9.8km
Eagle Mountain27,332 (2017)14.4km
Saratoga Springs25,407 (2017)23.9km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Mindat Locality ID:
8260
Long-form identifier:
mindat:1:2:8260:3
GUID (UUID V4):
0
Other/historical names associated with this locality:
Clay Canyon Deposit, Clay Canyon Variscite Mine


A former underground phosphate/gemstone deposit/mine in altered limestone. Also named "Clay Canyon Varischite Mine" (Wilson, 2010).

This was the locality that produced the many fine examples of variscite cherished by collectors. It was actively mined by Ed Over in 1937 (and 1938?) with the help of Arthur Montgomery. The material is distinctive when compared to variscite from other localities. The polished nodules always exhibit a rind of yellow crandallite with not infrequent lines of more yellow crandallite bisecting in places the green variscite. Often, too, there will be additional little spheres of grey-green wardite present as well. Fine polished slices and half nodules of this material will bring more than a thousand dollars.

Note: Very little of the locality can be found today. The entrances to the mine and the dumps have been bulldozed to match the contour of the surrounding hills. GPS coordinates are approximate.

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


16 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Alunite
Formula: KAl3(SO4)2(OH)6
Calcite
Formula: CaCO3
Crandallite
Formula: CaAl3(PO4)(PO3OH)(OH)6
Englishite
Formula: K3Na2Ca10Al15(PO4)21(OH)7 · 26H2O
Fluorapatite
Formula: Ca5(PO4)3F
Fluorapatite var. Carbonate-rich Fluorapatite
Formula: Ca5(PO4,CO3)3(F,O)
Gordonite
Formula: MgAl2(PO4)2(OH)2 · 8H2O
Goyazite
Formula: SrAl3(PO4)(PO3OH)(OH)6
Hydroxycalcioroméite
Formula: (Ca,Sb3+)2(Sb5+,Ti)2O6(OH)
Hydroxylapatite
Formula: Ca5(PO4)3(OH)
Kolbeckite
Formula: ScPO4 · 2H2O
'Limonite'
Millisite
Formula: (Na,K)CaAl6(PO4)4(OH)9 · 3H2O
Montgomeryite
Formula: Ca4MgAl4(PO4)6(OH)4 · 12H2O
Overite
Formula: CaMgAl(PO4)2(OH) · 4H2O
Quartz
Formula: SiO2
Variscite
Formula: AlPO4 · 2H2O
Wardite
Formula: NaAl3(PO4)2(OH)4 · 2H2O

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Hydroxycalcioroméite4.DH.20(Ca,Sb3+)2(Sb5+,Ti)2O6(OH)
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Alunite7.BC.10KAl3(SO4)2(OH)6
Group 8 - Phosphates, Arsenates and Vanadates
Crandallite8.BL.10CaAl3(PO4)(PO3OH)(OH)6
Goyazite8.BL.10SrAl3(PO4)(PO3OH)(OH)6
Fluorapatite
var. Carbonate-rich Fluorapatite
8.BN.05Ca5(PO4,CO3)3(F,O)
8.BN.05Ca5(PO4)3F
Hydroxylapatite8.BN.05Ca5(PO4)3(OH)
Kolbeckite8.CD.05ScPO4 · 2H2O
Variscite8.CD.10AlPO4 · 2H2O
Gordonite8.DC.30MgAl2(PO4)2(OH)2 · 8H2O
Overite8.DH.20CaMgAl(PO4)2(OH) · 4H2O
Montgomeryite8.DH.25Ca4MgAl4(PO4)6(OH)4 · 12H2O
Englishite8.DH.55K3Na2Ca10Al15(PO4)21(OH)7 · 26H2O
Millisite8.DL.10(Na,K)CaAl6(PO4)4(OH)9 · 3H2O
Wardite8.DL.10NaAl3(PO4)2(OH)4 · 2H2O
Unclassified
'Limonite'-

List of minerals for each chemical element

HHydrogen
H AluniteKAl3(SO4)2(OH)6
H CrandalliteCaAl3(PO4)(PO3OH)(OH)6
H EnglishiteK3Na2Ca10Al15(PO4)21(OH)7 · 26H2O
H GordoniteMgAl2(PO4)2(OH)2 · 8H2O
H GoyaziteSrAl3(PO4)(PO3OH)(OH)6
H HydroxylapatiteCa5(PO4)3(OH)
H KolbeckiteScPO4 · 2H2O
H Hydroxycalcioroméite(Ca,Sb3+)2(Sb5+,Ti)2O6(OH)
H Millisite(Na,K)CaAl6(PO4)4(OH)9 · 3H2O
H MontgomeryiteCa4MgAl4(PO4)6(OH)4 · 12H2O
H OveriteCaMgAl(PO4)2(OH) · 4H2O
H VarisciteAlPO4 · 2H2O
H WarditeNaAl3(PO4)2(OH)4 · 2H2O
CCarbon
C CalciteCaCO3
C Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
OOxygen
O AluniteKAl3(SO4)2(OH)6
O CalciteCaCO3
O Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
O CrandalliteCaAl3(PO4)(PO3OH)(OH)6
O EnglishiteK3Na2Ca10Al15(PO4)21(OH)7 · 26H2O
O FluorapatiteCa5(PO4)3F
O GordoniteMgAl2(PO4)2(OH)2 · 8H2O
O GoyaziteSrAl3(PO4)(PO3OH)(OH)6
O HydroxylapatiteCa5(PO4)3(OH)
O KolbeckiteScPO4 · 2H2O
O Hydroxycalcioroméite(Ca,Sb3+)2(Sb5+,Ti)2O6(OH)
O Millisite(Na,K)CaAl6(PO4)4(OH)9 · 3H2O
O MontgomeryiteCa4MgAl4(PO4)6(OH)4 · 12H2O
O OveriteCaMgAl(PO4)2(OH) · 4H2O
O QuartzSiO2
O VarisciteAlPO4 · 2H2O
O WarditeNaAl3(PO4)2(OH)4 · 2H2O
FFluorine
F Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
F FluorapatiteCa5(PO4)3F
NaSodium
Na EnglishiteK3Na2Ca10Al15(PO4)21(OH)7 · 26H2O
Na Millisite(Na,K)CaAl6(PO4)4(OH)9 · 3H2O
Na WarditeNaAl3(PO4)2(OH)4 · 2H2O
MgMagnesium
Mg GordoniteMgAl2(PO4)2(OH)2 · 8H2O
Mg MontgomeryiteCa4MgAl4(PO4)6(OH)4 · 12H2O
Mg OveriteCaMgAl(PO4)2(OH) · 4H2O
AlAluminium
Al AluniteKAl3(SO4)2(OH)6
Al CrandalliteCaAl3(PO4)(PO3OH)(OH)6
Al EnglishiteK3Na2Ca10Al15(PO4)21(OH)7 · 26H2O
Al GordoniteMgAl2(PO4)2(OH)2 · 8H2O
Al GoyaziteSrAl3(PO4)(PO3OH)(OH)6
Al Millisite(Na,K)CaAl6(PO4)4(OH)9 · 3H2O
Al MontgomeryiteCa4MgAl4(PO4)6(OH)4 · 12H2O
Al OveriteCaMgAl(PO4)2(OH) · 4H2O
Al VarisciteAlPO4 · 2H2O
Al WarditeNaAl3(PO4)2(OH)4 · 2H2O
SiSilicon
Si QuartzSiO2
PPhosphorus
P Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
P CrandalliteCaAl3(PO4)(PO3OH)(OH)6
P EnglishiteK3Na2Ca10Al15(PO4)21(OH)7 · 26H2O
P FluorapatiteCa5(PO4)3F
P GordoniteMgAl2(PO4)2(OH)2 · 8H2O
P GoyaziteSrAl3(PO4)(PO3OH)(OH)6
P HydroxylapatiteCa5(PO4)3(OH)
P KolbeckiteScPO4 · 2H2O
P Millisite(Na,K)CaAl6(PO4)4(OH)9 · 3H2O
P MontgomeryiteCa4MgAl4(PO4)6(OH)4 · 12H2O
P OveriteCaMgAl(PO4)2(OH) · 4H2O
P VarisciteAlPO4 · 2H2O
P WarditeNaAl3(PO4)2(OH)4 · 2H2O
SSulfur
S AluniteKAl3(SO4)2(OH)6
KPotassium
K AluniteKAl3(SO4)2(OH)6
K EnglishiteK3Na2Ca10Al15(PO4)21(OH)7 · 26H2O
K Millisite(Na,K)CaAl6(PO4)4(OH)9 · 3H2O
CaCalcium
Ca CalciteCaCO3
Ca Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
Ca CrandalliteCaAl3(PO4)(PO3OH)(OH)6
Ca EnglishiteK3Na2Ca10Al15(PO4)21(OH)7 · 26H2O
Ca FluorapatiteCa5(PO4)3F
Ca HydroxylapatiteCa5(PO4)3(OH)
Ca Hydroxycalcioroméite(Ca,Sb3+)2(Sb5+,Ti)2O6(OH)
Ca Millisite(Na,K)CaAl6(PO4)4(OH)9 · 3H2O
Ca MontgomeryiteCa4MgAl4(PO4)6(OH)4 · 12H2O
Ca OveriteCaMgAl(PO4)2(OH) · 4H2O
ScScandium
Sc KolbeckiteScPO4 · 2H2O
TiTitanium
Ti Hydroxycalcioroméite(Ca,Sb3+)2(Sb5+,Ti)2O6(OH)
SrStrontium
Sr GoyaziteSrAl3(PO4)(PO3OH)(OH)6
SbAntimony
Sb Hydroxycalcioroméite(Ca,Sb3+)2(Sb5+,Ti)2O6(OH)

Other Databases

Link to USGS MRDS:10108909

Mindat Articles

Clay Canyon & the Little Green Monster Variscite Mine by Dave Crosby


Other Regions, Features and Areas containing this locality


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