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Garnet Ridge, Dinnehotso, Apache County, Arizona, USAi
Regional Level Types
Garnet RidgeRidge
Dinnehotso- not defined -
Apache CountyCounty
ArizonaState
USACountry

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PhotosMapsSearch
Latitude & Longitude (WGS84):
36° 59' 17'' North , 109° 45' 10'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Dennehotso746 (2011)17.9km
Halchita266 (2011)19.5km
Tselakai Dezza109 (2011)27.2km
Rock Point642 (2011)32.1km
Red Mesa480 (2011)34.1km
Mindat Locality ID:
6918
Long-form identifier:
mindat:1:2:6918:5
GUID (UUID V4):
fe6db02a-4d59-4b21-ac83-8074bc0357ef


Garnet Ridge is located in the Navajo volcanic field near Dinnehotso. It is named for the pyrope garnets that occur in the serpentine deposits that intrude host rocks of Jurassic age about 35 miles NE of Kayenta, AZ.

The serpentine deposits are mainly in pipes choked with rock debris derived from a section more than 5,000 feet thick, ranging in age from Precambrian (?) to Cretaceous.

The intrusive serpentine deposits occur as pipe fillings and, rarely, as dikes & sills. The pipes are aligned NE-ward, parallel to the regional strike, but the dikes are parallel to joints that trend NW-ward. Pipe No. 1, at the crest of the ridge, measures 1,000 feet across; pipes 2, 3 & 4, about 2 miles NE, form a cluster 1,500 to 4,000 feet diameter, which trends NW-ward. The pipes are steep-walled & irregularly shaped.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

35 valid minerals. 1 (TL) - type locality of valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Aegirine
Formula: NaFe3+Si2O6
Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Description: Occurs as veinlets in a rubble dike.
Antigorite
Formula: Mg3(Si2O5)(OH)4
Description: Occurs as an alteration product of olivine, in a matrix of serpentine rubble.
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Description: Occurs in a breccia dike associated with loose garnets.
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Calcite
Formula: CaCO3
Carmichaelite (TL)
Formula: (Ti,Cr,Fe)[O2-x(OH)x]
Type Locality:
Description: Inclusions in Pyrope
Chalcocite
Formula: Cu2S
Chalcopyrite
Formula: CuFeS2
Description: Occurs as vein fillings & cement in Navajo Sandstone.
'Chlorite Group'
Chromite
Formula: Fe2+Cr3+2O4
Description: Occurs as fragments in breccia dike transecting sedimentary rocks.
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Description: In veins cutting Navajo Sandstone & as cement along the contacts with a nearby breccia dike.
Chrysotile
Formula: Mg3(Si2O5)(OH)4
Diopside
Formula: CaMgSi2O6
Colour: Emerald-green
Description: Formed in a breccia dike associated with pyrope.
Diopside var. Chromium-bearing Diopside
Formula: Ca(Mg,Cr)Si2O6
Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Description: Occurs in the matrix of ejection boulders of garnet gneiss.
'Fayalite-Forsterite Series'
Colour: Green to brown
Description: Clear, gem quality material.
Gypsum
Formula: CaSO4 · 2H2O
'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
'Hypersthene'
Formula: (Mg,Fe)SiO3
Description: Occurs as sparse crystals in ejection boulders of garnet gneiss.
Ilmenite
Formula: Fe2+TiO3
Description: Occurs as inclusions in pyrope; also, as fragments in a breccia dike piercing sediments; as needles.
Lawsonite
Formula: CaAl2(Si2O7)(OH)2 · H2O
Description: Occurs with pyrope and omphacite in eclogite inclusions in kimberlite pipes.
'Limonite'
Magnesiochromite
Formula: MgCr2O4
Description: Occurs as minute fragments in a breccia dike that pierces sedimentary rocks.
Malachite
Formula: Cu2(CO3)(OH)2
Description: Occurs in vein fillings & in cement in the navajo Sandstone, associated with chrysocolla.
'Melilite Group'
Formula: Ca2M(XSiO7)
Metatyuyamunite
Formula: Ca(UO2)2(VO4)2 · 3H2O
Microcline
Formula: K(AlSi3O8)
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Omphacite
Formula: (NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6
Description: Coexists with pyrope garnet and lawsonite in eclogite inclusions in kimberlite pipes.
Pyrite
Formula: FeS2
Pyrope
Formula: Mg3Al2(SiO4)3
Description: All garnets here are pyrope, with a 25% to 45% almandine component (50% rule).
Quartz
Formula: SiO2
Rutile
Formula: TiO2
Description: Minute fragments in a breccia dike that pierces sedimentary rocks. Common as needle-like crystals in pyrope.
'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
Description: Occurs in a boulder related to a breccia dike that pierces sedimentary rocks; pseudomorphous after an orthopyroxene.
Spinel
Formula: MgAl2O4
Description: Inclusions in Pyrope
References:
Srilankite
Formula: ZrTi2O6
Description: Occurs as inclusions in pyrope.
Talc
Formula: Mg3Si4O10(OH)2
Description: Occurs as minute fragments & in a breccia dike that pierces sedimentary rocks.
Tangeite
Formula: CaCu(VO4)(OH)
Description: Occurs in vein fillings & in the cement of the Navajo Sandstone along & near contact with a breccia dike.
Tyuyamunite
Formula: Ca(UO2)2(VO4)2 · 5-8H2O
Uraninite
Formula: UO2
Volborthite
Formula: Cu3(V2O7)(OH)2 · 2H2O
Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcocite2.BA.05Cu2S
Chalcopyrite2.CB.10aCuFeS2
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Spinel4.BB.05MgAl2O4
Magnesiochromite4.BB.05MgCr2O4
Chromite4.BB.05Fe2+Cr3+2O4
Ilmenite4.CB.05Fe2+TiO3
Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Srilankite4.DB.25ZrTi2O6
Carmichaelite (TL)4.DB.50(Ti,Cr,Fe)[O2-x(OH)x]
Uraninite4.DL.05UO2
Metatyuyamunite4.HB.25Ca(UO2)2(VO4)2 · 3H2O
Tyuyamunite4.HB.25Ca(UO2)2(VO4)2 · 5-8H2O
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Gypsum7.CD.40CaSO4 · 2H2O
Group 8 - Phosphates, Arsenates and Vanadates
Tangeite8.BH.35CaCu(VO4)(OH)
Volborthite8.FD.05Cu3(V2O7)(OH)2 · 2H2O
Group 9 - Silicates
Chrysotile9..Mg3(Si2O5)(OH)4
Pyrope9.AD.25Mg3Al2(SiO4)3
Zircon9.AD.30Zr(SiO4)
Lawsonite9.BE.05CaAl2(Si2O7)(OH)2 · H2O
Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Diopside9.DA.15CaMgSi2O6
var. Chromium-bearing Diopside9.DA.15Ca(Mg,Cr)Si2O6
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Omphacite9.DA.20(NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6
Aegirine9.DA.25NaFe3+Si2O6
Actinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Talc9.EC.05Mg3Si4O10(OH)2
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Antigorite9.ED.15Mg3(Si2O5)(OH)4
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Microcline9.FA.30K(AlSi3O8)
Unclassified
'Limonite'-
'Hypersthene'-(Mg,Fe)SiO3
'Chlorite Group'-
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
'Fayalite-Forsterite Series'-
'Hornblende Root Name Group'-◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
'Serpentine Subgroup'-D3[Si2O5](OH)4
'Melilite Group'-Ca2M(XSiO7)

List of minerals for each chemical element

HHydrogen
H Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
H AntigoriteMg3(Si2O5)(OH)4
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
H ChrysotileMg3(Si2O5)(OH)4
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
H Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
H GypsumCaSO4 · 2H2O
H LawsoniteCaAl2(Si2O7)(OH)2 · H2O
H MalachiteCu2(CO3)(OH)2
H MetatyuyamuniteCa(UO2)2(VO4)2 · 3H2O
H MuscoviteKAl2(AlSi3O10)(OH)2
H TalcMg3Si4O10(OH)2
H TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
H TangeiteCaCu(VO4)(OH)
H VolborthiteCu3(V2O7)(OH)2 · 2H2O
H Carmichaelite(Ti,Cr,Fe)[O2-x(OH)x]
H Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
H Serpentine SubgroupD3[Si2O5](OH)4
CCarbon
C AnkeriteCa(Fe2+,Mg)(CO3)2
C CalciteCaCO3
C MalachiteCu2(CO3)(OH)2
OOxygen
O Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
O AegirineNaFe3+Si2O6
O AnkeriteCa(Fe2+,Mg)(CO3)2
O AntigoriteMg3(Si2O5)(OH)4
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
O CalciteCaCO3
O ChrysotileMg3(Si2O5)(OH)4
O Diopside var. Chromium-bearing DiopsideCa(Mg,Cr)Si2O6
O ChromiteFe2+Cr23+O4
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
O DiopsideCaMgSi2O6
O Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
O GypsumCaSO4 · 2H2O
O Hypersthene(Mg,Fe)SiO3
O IlmeniteFe2+TiO3
O LawsoniteCaAl2(Si2O7)(OH)2 · H2O
O MagnesiochromiteMgCr2O4
O MalachiteCu2(CO3)(OH)2
O MetatyuyamuniteCa(UO2)2(VO4)2 · 3H2O
O MicroclineK(AlSi3O8)
O MuscoviteKAl2(AlSi3O10)(OH)2
O Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
O PyropeMg3Al2(SiO4)3
O QuartzSiO2
O RutileTiO2
O SpinelMgAl2O4
O SrilankiteZrTi2O6
O TalcMg3Si4O10(OH)2
O TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
O TangeiteCaCu(VO4)(OH)
O UraniniteUO2
O VolborthiteCu3(V2O7)(OH)2 · 2H2O
O ZirconZr(SiO4)
O Carmichaelite(Ti,Cr,Fe)[O2-x(OH)x]
O Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
O Serpentine SubgroupD3[Si2O5](OH)4
O Melilite GroupCa2M(XSiO7)
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
F Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
NaSodium
Na AegirineNaFe3+Si2O6
Na Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
MgMagnesium
Mg Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mg AnkeriteCa(Fe2+,Mg)(CO3)2
Mg AntigoriteMg3(Si2O5)(OH)4
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mg ChrysotileMg3(Si2O5)(OH)4
Mg Diopside var. Chromium-bearing DiopsideCa(Mg,Cr)Si2O6
Mg DiopsideCaMgSi2O6
Mg Hypersthene(Mg,Fe)SiO3
Mg MagnesiochromiteMgCr2O4
Mg Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Mg PyropeMg3Al2(SiO4)3
Mg SpinelMgAl2O4
Mg TalcMg3Si4O10(OH)2
AlAluminium
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Al Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Al LawsoniteCaAl2(Si2O7)(OH)2 · H2O
Al MicroclineK(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Al PyropeMg3Al2(SiO4)3
Al SpinelMgAl2O4
Al Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
SiSilicon
Si Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Si AegirineNaFe3+Si2O6
Si AntigoriteMg3(Si2O5)(OH)4
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Si ChrysotileMg3(Si2O5)(OH)4
Si Diopside var. Chromium-bearing DiopsideCa(Mg,Cr)Si2O6
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Si DiopsideCaMgSi2O6
Si Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Si Hypersthene(Mg,Fe)SiO3
Si LawsoniteCaAl2(Si2O7)(OH)2 · H2O
Si MicroclineK(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Si PyropeMg3Al2(SiO4)3
Si QuartzSiO2
Si TalcMg3Si4O10(OH)2
Si ZirconZr(SiO4)
Si Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Si Serpentine SubgroupD3[Si2O5](OH)4
Si Melilite GroupCa2M(XSiO7)
SSulfur
S ChalcopyriteCuFeS2
S ChalcociteCu2S
S GypsumCaSO4 · 2H2O
S PyriteFeS2
ClChlorine
Cl Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
KPotassium
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Ca AnkeriteCa(Fe2+,Mg)(CO3)2
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca CalciteCaCO3
Ca Diopside var. Chromium-bearing DiopsideCa(Mg,Cr)Si2O6
Ca DiopsideCaMgSi2O6
Ca Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Ca GypsumCaSO4 · 2H2O
Ca LawsoniteCaAl2(Si2O7)(OH)2 · H2O
Ca MetatyuyamuniteCa(UO2)2(VO4)2 · 3H2O
Ca Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Ca TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
Ca TangeiteCaCu(VO4)(OH)
Ca Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Ca Melilite GroupCa2M(XSiO7)
TiTitanium
Ti BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Ti IlmeniteFe2+TiO3
Ti RutileTiO2
Ti SrilankiteZrTi2O6
Ti Carmichaelite(Ti,Cr,Fe)[O2-x(OH)x]
VVanadium
V MetatyuyamuniteCa(UO2)2(VO4)2 · 3H2O
V TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
V TangeiteCaCu(VO4)(OH)
V VolborthiteCu3(V2O7)(OH)2 · 2H2O
CrChromium
Cr Diopside var. Chromium-bearing DiopsideCa(Mg,Cr)Si2O6
Cr ChromiteFe2+Cr23+O4
Cr MagnesiochromiteMgCr2O4
Cr Carmichaelite(Ti,Cr,Fe)[O2-x(OH)x]
FeIron
Fe Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Fe AegirineNaFe3+Si2O6
Fe AnkeriteCa(Fe2+,Mg)(CO3)2
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fe ChalcopyriteCuFeS2
Fe ChromiteFe2+Cr23+O4
Fe Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Fe Hypersthene(Mg,Fe)SiO3
Fe IlmeniteFe2+TiO3
Fe Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Fe PyriteFeS2
Fe Carmichaelite(Ti,Cr,Fe)[O2-x(OH)x]
CuCopper
Cu ChalcopyriteCuFeS2
Cu ChalcociteCu2S
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cu MalachiteCu2(CO3)(OH)2
Cu TangeiteCaCu(VO4)(OH)
Cu VolborthiteCu3(V2O7)(OH)2 · 2H2O
ZrZirconium
Zr SrilankiteZrTi2O6
Zr ZirconZr(SiO4)
UUranium
U MetatyuyamuniteCa(UO2)2(VO4)2 · 3H2O
U TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
U UraniniteUO2

Localities in this Region

Other Regions, Features and Areas containing this locality

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.

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