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Monarch Mining District, Chaffee Co., Colorado, USAi
Regional Level Types
Monarch Mining DistrictMining District
Chaffee Co.County
ColoradoState
USACountry

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Key
Latitude & Longitude (WGS84):
38° North , 106° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~49km
Locality type:
Köppen climate type:


Most of the principal mines in the Monarch district are situated on Monarch Ridge, about half a mile south of Monarch, and in an area north of Garfield extending from Taylor Gulch west to Columbus Gulch. Outlying groups of mines are situated high up in Middle Fork and North Fork valleys, in Hoffman Park, and near the source of Cree Creek.

The district has produced silver, lead, zinc, gold, and copper.

The ore deposits of the Monarch district consist of replacement deposits in limestone and dolomite, and of veins. The replacement deposits have been overwhelmingly the most productive. They occur in bedded and irregular forms and along faults. The bedded and irregular replacement deposits occur locally in all of the formations that contain limy beds, but they are particularly characteristic of the basal 50 feet of the Manitou dolomite, and in many places rest on granite.

Most of the ore obtained from the replacement deposits has been oxidized, although primary sulfide minerals were reached at varying depths in all the deeper mines. The oxidized ore is typically brown, soft, porous limonite containing variable amounts of cerussite, calamine, smithsonite, and occasional patches or grains of galena. The common primary sulfides are pyrite, galena, sphalerite, and chalcopyrite. Pyrrhotite is present in part of the ore in the Garfield mine.

The unoxidized parts of the veins consist characteristically of variable proportions of galena, sphalerite, and pyrite, and generally lesser amounts of chalcopyrite, in a gangue of white vuggy quartz. Silver is present in nearly all the sulfide ores, and gold is present locally and in variable quantities. Oxidized vein matter is typically brown, somewhat porous limonite or limonitic quartz, accompanied locally by cerussite, smithsonite, calamine, secondary copper stains, and patches or grains of galena. Oxidation is not nearly so pronounced or deep in the veins as in the replacement deposits. The veins in the sedimentary rocks are more deeply altered than those in the crystalline rocks; many are extensively oxidized to depths of several hundred feet, whereas most of the veins in the crystalline rocks contain fresh sulfides at or a few feet below the surface.

Several ore deposits in the Monarch district are associated with minerals characteristically developed by contact metomorphism. All these deposits are near the head of Taylor Gulch or in Cree Creek valley, near a large body of Mount Princeton quartz monzonite which has irregularly metamorphosed the bordering sedimentary rocks to the southeast for as much as half a mile.
Silver ore is reported to be associated with magnetite in the Mountain Chief mine, sphalerite is associated with diopside and andradite near the New York mine, and silver, copper, lead, and gold are associated with garnet in the Clinton mine.
U.S. Geological Survey Professional Paper 289

Regions containing this locality

North America PlateTectonic Plate
Rocky Mountains, North AmericaMountain Range

Select Mineral List Type

Standard Detailed Strunz Dana 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

61 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and 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:

Acanthite
Formula: Ag2S
Reference: Minerals of Colorado (1997) E.B. Eckel
Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Almandine
Formula: Fe2+3Al2(SiO4)3
Andradite
Formula: Ca3Fe3+2(SiO4)3
Anglesite
Formula: PbSO4
Localities: Reported from at least 7 localities in this region.
Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Anthophyllite
Formula: ☐{Mg2}{Mg5}(Si8O22)(OH)2
Reference: The Canadian Mineralogist Vol. 43, pp. 601-622 (2005)
'Asbestos'
Reference: Minerals of Colorado (1997) Eckel, E. B.
Azurite
Formula: Cu3(CO3)2(OH)2
Localities: Reported from at least 7 localities in this region.
Baryte
Formula: BaSO4
Reference: Hazen Jr, S. W. (1956). Exploration for Lead and Zinc at the Madonna Mine, Monarch Mining District, Chaffee County, Colorado (No. RI 5218). US Bureau of Mines.
Beryl
Formula: Be3Al2(Si6O18)
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Beryl var: Aquamarine
Formula: Be3Al2Si6O18
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Reference: The Canadian Mineralogist Vol. 43, pp. 601-622 (2005); Sheridan, Douglas M., Raymond, William H. (1964) Precambrian deposits of zinc-copper-lead sulfides and zinc spinel (gahnite) in Colorado. USGS Bulletin 1550
Bornite
Formula: Cu5FeS4
Reference: Minerals of Colorado (1997) Eckel, E. B.
Brochantite
Formula: Cu4(SO4)(OH)6
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 543.
Calcite
Formula: CaCO3
Localities: Reported from at least 24 localities in this region.
Cerussite
Formula: PbCO3
Localities: Reported from at least 29 localities in this region.
Chalcocite
Formula: Cu2S
Chalcopyrite
Formula: CuFeS2
Localities: Reported from at least 23 localities in this region.
Chlorargyrite
Formula: AgCl
'Chlorite Group'
Reference: Minerals of Colorado (1997) Eckel, E. B.
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Localities: Reported from at least 8 localities in this region.
Copper
Formula: Cu
'Copper Stain'
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Cuprite
Formula: Cu2O
Reference: Minerals of Colorado (1997) Eckel, E. B.; U.S. Geological Survey Professional Paper 289
Diopside
Formula: CaMgSi2O6
Dolomite
Formula: CaMg(CO3)2
Localities: Reported from at least 8 localities in this region.
Dolomite var: Ferroan Dolomite
Formula: Ca(Mg,Fe)(CO3)2
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
'Fayalite-Forsterite Series'
Reference: Minerals of Colorado (1997) Eckel, E. B.
'Feldspar Group'
Reference: Minerals of Colorado (1997) Eckel, E. B.; The Canadian Mineralogist Vol. 43, pp. 601-622 (2005)
Fluorite
Formula: CaF2
Reference: Minerals of Colorado (1997) E.B. Eckel
Gahnite
Formula: ZnAl2O4
Galena
Formula: PbS
Localities: Reported from at least 54 localities in this region.
Galena var: Argentiferous Galena
Formula: PbS
Localities: Reported from at least 7 localities in this region.
'Garnet Group'
Formula: X3Z2(SiO4)3
Gedrite
Formula: ☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Reference: The Canadian Mineralogist Vol. 43, pp. 601-622 (2005)
Goethite
Formula: α-Fe3+O(OH)
Gold
Formula: Au
Localities: Reported from at least 18 localities in this region.
Graphite
Formula: C
Reference: Minerals of Colorado (1997) Eckel, E. B.
Grossular
Formula: Ca3Al2(SiO4)3
Reference: Minerals of Colorado (1997) E.B. Eckel
Gypsum
Formula: CaSO4 · 2H2O
Reference: U.S. Geological Survey Professional Paper 289
Hematite
Formula: Fe2O3
Hematite var: Specularite
Formula: Fe2O3
Reference: U.S. Geological Survey Professional Paper 289
Hemimorphite
Formula: Zn4Si2O7(OH)2 · H2O
Localities: Reported from at least 11 localities in this region.
'Hornblende'
Reference: Minerals of Colorado (1997) Eckel, E. B.
Hübnerite
Formula: MnWO4
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Limonite'
Formula: (Fe,O,OH,H2O)
Localities: Reported from at least 28 localities in this region.
Lizardite
Formula: Mg3(Si2O5)(OH)4
Reference: Minerals of Colorado (1997) E.B. Eckel
Magnetite
Formula: Fe2+Fe3+2O4
Malachite
Formula: Cu2(CO3)(OH)2
Localities: Reported from at least 18 localities in this region.
Mimetite
Formula: Pb5(AsO4)3Cl
Reference: Minerals of Colorado (1997) E.B. Eckel
Molybdenite
Formula: MoS2
Localities: Reported from at least 7 localities in this region.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: The Canadian Mineralogist Vol. 43, pp. 601-622 (2005)
Phenakite
Formula: Be2SiO4
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Reference: Minerals of Colorado (1997) E.B. Eckel
Plumbojarosite
Formula: Pb0.5Fe3+3(SO4)2(OH)6
Reference: Minerals of Colorado (1997) E.B. Eckel
'Psilomelane'
Formula: Mn, O
Reference: Minerals of Colorado (1997) E.B. Eckel
Pyrite
Formula: FeS2
Localities: Reported from at least 36 localities in this region.
Reference: U.S. Geological Survey Professional Paper 289
Pyrolusite
Formula: Mn4+O2
Reference: Minerals of Colorado (1997) E.B. Eckel
Pyrrhotite
Formula: Fe7S8
Quartz
Formula: SiO2
Localities: Reported from at least 49 localities in this region.
Scheelite
Formula: Ca(WO4)
Reference: Minerals of Colorado (1997) Eckel, E. B.
'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Siderite
Formula: FeCO3
Sillimanite
Formula: Al2(SiO4)O
Silver
Formula: Ag
Smithsonite
Formula: ZnCO3
Localities: Reported from at least 11 localities in this region.
Sphalerite
Formula: ZnS
Localities: Reported from at least 28 localities in this region.
Stephanite
Formula: Ag5SbS4
Reference: Minerals of Colorado (1997) E.B. Eckel
Sylvanite ?
Formula: (Au,Ag)2Te4
Reference: Minerals of Colorado (1997) E.B. Eckel
Tenorite
Formula: CuO
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
'Wad'
Wollastonite
Formula: CaSiO3
Reference: Minerals of Colorado (1997) Eckel, E. B.
Wulfenite
Formula: Pb(MoO4)

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Copper1.AA.05Cu
Gold1.AA.05Au
Graphite1.CB.05aC
Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
Acanthite2.BA.35Ag2S
Bornite2.BA.15Cu5FeS4
Chalcocite2.BA.05Cu2S
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
var: Argentiferous Galena2.CD.10PbS
Molybdenite2.EA.30MoS2
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Sphalerite2.CB.05aZnS
Stephanite2.GB.10Ag5SbS4
Sylvanite ?2.EA.05(Au,Ag)2Te4
Group 3 - Halides
Chlorargyrite3.AA.15AgCl
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Cuprite4.AA.10Cu2O
Gahnite4.BB.05ZnAl2O4
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
var: Specularite4.CB.05Fe2O3
Hübnerite4.DB.30MnWO4
Magnetite4.BB.05Fe2+Fe3+2O4
Pyrolusite4.DB.05Mn4+O2
Quartz4.DA.05SiO2
Tenorite4.AB.10CuO
Group 5 - Nitrates and Carbonates
Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Azurite5.BA.05Cu3(CO3)2(OH)2
Calcite5.AB.05CaCO3
Cerussite5.AB.15PbCO3
Dolomite5.AB.10CaMg(CO3)2
var: Ferroan Dolomite5.AB.10Ca(Mg,Fe)(CO3)2
Malachite5.BA.10Cu2(CO3)(OH)2
Siderite5.AB.05FeCO3
Smithsonite5.AB.05ZnCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Anglesite7.AD.35PbSO4
Baryte7.AD.35BaSO4
Brochantite7.BB.25Cu4(SO4)(OH)6
Gypsum7.CD.40CaSO4 · 2H2O
Plumbojarosite7.BC.10Pb0.5Fe3+3(SO4)2(OH)6
Scheelite7.GA.05Ca(WO4)
Wulfenite7.GA.05Pb(MoO4)
Group 8 - Phosphates, Arsenates and Vanadates
Mimetite8.BN.05Pb5(AsO4)3Cl
Group 9 - Silicates
Actinolite9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Almandine9.AD.25Fe2+3Al2(SiO4)3
Andradite9.AD.25Ca3Fe3+2(SiO4)3
Anthophyllite9.DD.05☐{Mg2}{Mg5}(Si8O22)(OH)2
Beryl9.CJ.05Be3Al2(Si6O18)
var: Aquamarine9.CJ.05Be3Al2Si6O18
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Cordierite9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
Diopside9.DA.15CaMgSi2O6
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Gedrite9.DD.05☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Grossular9.AD.25Ca3Al2(SiO4)3
Hemimorphite9.BD.10Zn4Si2O7(OH)2 · H2O
Lizardite9.ED.15Mg3(Si2O5)(OH)4
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Phenakite9.AA.05Be2SiO4
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Sillimanite9.AF.05Al2(SiO4)O
Tremolite9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2
Wollastonite9.DG.05CaSiO3
Unclassified Minerals, Rocks, etc.
'Asbestos'-
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Chlorite Group'-
'Copper Stain'-
'Fayalite-Forsterite Series'-
'Feldspar Group'-
'Garnet Group'-X3Z2(SiO4)3
'Hornblende'-
'Limonite'-(Fe,O,OH,H2O)
'Psilomelane'-Mn, O
'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
'Wad'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Copper1.1.1.3Cu
Gold1.1.1.1Au
Silver1.1.1.2Ag
Semi-metals and non-metals
Graphite1.3.6.2C
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Acanthite2.4.1.1Ag2S
Chalcocite2.4.7.1Cu2S
AmBnXp, with (m+n):p = 3:2
Bornite2.5.2.1Cu5FeS4
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Pyrrhotite2.8.10.1Fe7S8
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Molybdenite2.12.10.1MoS2
Pyrite2.12.1.1FeS2
Sylvanite ?2.12.13.3(Au,Ag)2Te4
Group 3 - SULFOSALTS
ø = 4
Stephanite3.2.4.1Ag5SbS4
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
AX
Tenorite4.2.3.1CuO
A2X3
Hematite4.3.1.2Fe2O3
AX2
Pyrolusite4.4.1.4Mn4+O2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Gahnite7.2.1.4ZnAl2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 9 - NORMAL HALIDES
AX
Chlorargyrite9.1.4.1AgCl
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Cerussite14.1.3.4PbCO3
Siderite14.1.1.3FeCO3
Smithsonite14.1.1.6ZnCO3
AB(XO3)2
Ankerite14.2.1.2Ca(Fe2+,Mg)(CO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Azurite16a.2.1.1Cu3(CO3)2(OH)2
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Anglesite28.3.1.3PbSO4
Baryte28.3.1.1BaSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)m(XO4)pZq, where m:p>2:1
Brochantite30.1.3.1Cu4(SO4)(OH)6
(AB)2(XO4)Zq
Plumbojarosite30.2.5.6Pb0.5Fe3+3(SO4)2(OH)6
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Mimetite41.8.4.2Pb5(AsO4)3Cl
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Hübnerite48.1.1.1MnWO4
Scheelite48.1.2.1Ca(WO4)
Wulfenite48.1.3.1Pb(MoO4)
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [4] coordination
Phenakite51.1.1.1Be2SiO4
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Almandine51.4.3a.2Fe2+3Al2(SiO4)3
Andradite51.4.3b.1Ca3Fe3+2(SiO4)3
Grossular51.4.3b.2Ca3Al2(SiO4)3
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination
Sillimanite52.2.2a.1Al2(SiO4)O
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] coordination
Hemimorphite56.1.2.1Zn4Si2O7(OH)2 · H2O
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Six-Membered Rings with Al substituted rings
Cordierite61.2.1.1(Mg,Fe)2Al3(AlSi5O18)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
Single-Width Unbranched Chains, W=1 with chains P=3
Wollastonite65.2.1.1cCaSiO3
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Anthophyllite66.1.2.1☐{Mg2}{Mg5}(Si8O22)(OH)2
Gedrite66.1.2.5☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Tremolite66.1.3a.1☐{Ca2}{Mg5}(Si8O22)(OH)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Lizardite71.1.2b.2Mg3(Si2O5)(OH)4
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Group 74 - PHYLLOSILICATES Modulated Layers
Modulated Layers with joined strips
Chrysocolla74.3.2.1Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Asbestos'-
Beryl
var: Aquamarine
-Be3Al2Si6O18
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Chlorite Group'-
'Copper Stain'-
Dolomite
var: Ferroan Dolomite
-Ca(Mg,Fe)(CO3)2
'Fayalite-Forsterite Series'-
'Feldspar Group'-
Galena
var: Argentiferous Galena
-PbS
'Garnet Group'-X3Z2(SiO4)3
Hematite
var: Specularite
-Fe2O3
'Hornblende'-
'Limonite'-(Fe,O,OH,H2O)
'Psilomelane'-Mn, O
'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
'Wad'-

List of minerals for each chemical element

HHydrogen
H BrochantiteCu4(SO4)(OH)6
H HemimorphiteZn4Si2O7(OH)2 · H2O
H Goethiteα-Fe3+O(OH)
H MalachiteCu2(CO3)(OH)2
H Limonite(Fe,O,OH,H2O)
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H AzuriteCu3(CO3)2(OH)2
H Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
H LizarditeMg3(Si2O5)(OH)4
H PlumbojarositePb0.5Fe33+(SO4)2(OH)6
H PhlogopiteKMg3(AlSi3O10)(OH)2
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
H GypsumCaSO4 · 2H2O
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
H Anthophyllite☐{Mg2}{Mg5}(Si8O22)(OH)2
H Gedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
BeBeryllium
Be BerylBe3Al2(Si6O18)
Be PhenakiteBe2SiO4
Be Beryl (var: Aquamarine)Be3Al2Si6O18
CCarbon
C DolomiteCaMg(CO3)2
C SideriteFeCO3
C SmithsoniteZnCO3
C Dolomite (var: Ferroan Dolomite)Ca(Mg,Fe)(CO3)2
C MalachiteCu2(CO3)(OH)2
C CalciteCaCO3
C CerussitePbCO3
C AnkeriteCa(Fe2+,Mg)(CO3)2
C AzuriteCu3(CO3)2(OH)2
C GraphiteC
OOxygen
O BrochantiteCu4(SO4)(OH)6
O DolomiteCaMg(CO3)2
O WulfenitePb(MoO4)
O SideriteFeCO3
O AnglesitePbSO4
O HemimorphiteZn4Si2O7(OH)2 · H2O
O SmithsoniteZnCO3
O Dolomite (var: Ferroan Dolomite)Ca(Mg,Fe)(CO3)2
O Goethiteα-Fe3+O(OH)
O MalachiteCu2(CO3)(OH)2
O CalciteCaCO3
O CerussitePbCO3
O Limonite(Fe,O,OH,H2O)
O QuartzSiO2
O BerylBe3Al2(Si6O18)
O PhenakiteBe2SiO4
O Beryl (var: Aquamarine)Be3Al2Si6O18
O HübneriteMnWO4
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O MagnetiteFe2+Fe23+O4
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O Garnet GroupX3Z2(SiO4)3
O GahniteZnAl2O4
O AlmandineFe32+Al2(SiO4)3
O Cordierite(Mg,Fe)2Al3(AlSi5O18)
O AndraditeCa3Fe23+(SiO4)3
O AnkeriteCa(Fe2+,Mg)(CO3)2
O AzuriteCu3(CO3)2(OH)2
O WollastoniteCaSiO3
O Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
O DiopsideCaMgSi2O6
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
O CupriteCu2O
O ScheeliteCa(WO4)
O HematiteFe2O3
O LizarditeMg3(Si2O5)(OH)4
O MimetitePb5(AsO4)3Cl
O PlumbojarositePb0.5Fe33+(SO4)2(OH)6
O PyrolusiteMn4+O2
O PsilomelaneMn, O
O GrossularCa3Al2(SiO4)3
O PhlogopiteKMg3(AlSi3O10)(OH)2
O TenoriteCuO
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
O Hematite (var: Specularite)Fe2O3
O GypsumCaSO4 · 2H2O
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
O SillimaniteAl2(SiO4)O
O Anthophyllite☐{Mg2}{Mg5}(Si8O22)(OH)2
O Gedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
O MuscoviteKAl2(AlSi3O10)(OH)2
O BaryteBaSO4
FFluorine
F FluoriteCaF2
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
MgMagnesium
Mg DolomiteCaMg(CO3)2
Mg Dolomite (var: Ferroan Dolomite)Ca(Mg,Fe)(CO3)2
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Mg Cordierite(Mg,Fe)2Al3(AlSi5O18)
Mg AnkeriteCa(Fe2+,Mg)(CO3)2
Mg Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Mg DiopsideCaMgSi2O6
Mg LizarditeMg3(Si2O5)(OH)4
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Mg Anthophyllite☐{Mg2}{Mg5}(Si8O22)(OH)2
Mg Gedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
AlAluminium
Al BerylBe3Al2(Si6O18)
Al Beryl (var: Aquamarine)Be3Al2Si6O18
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al GahniteZnAl2O4
Al AlmandineFe32+Al2(SiO4)3
Al Cordierite(Mg,Fe)2Al3(AlSi5O18)
Al Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Al GrossularCa3Al2(SiO4)3
Al PhlogopiteKMg3(AlSi3O10)(OH)2
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Al SillimaniteAl2(SiO4)O
Al Gedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Si HemimorphiteZn4Si2O7(OH)2 · H2O
Si QuartzSiO2
Si BerylBe3Al2(Si6O18)
Si PhenakiteBe2SiO4
Si Beryl (var: Aquamarine)Be3Al2Si6O18
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si Garnet GroupX3Z2(SiO4)3
Si AlmandineFe32+Al2(SiO4)3
Si Cordierite(Mg,Fe)2Al3(AlSi5O18)
Si AndraditeCa3Fe23+(SiO4)3
Si WollastoniteCaSiO3
Si Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Si DiopsideCaMgSi2O6
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Si LizarditeMg3(Si2O5)(OH)4
Si GrossularCa3Al2(SiO4)3
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Si SillimaniteAl2(SiO4)O
Si Anthophyllite☐{Mg2}{Mg5}(Si8O22)(OH)2
Si Gedrite☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
SSulfur
S BrochantiteCu4(SO4)(OH)6
S GalenaPbS
S AnglesitePbSO4
S PyriteFeS2
S ChalcociteCu2S
S ChalcopyriteCuFeS2
S SphaleriteZnS
S PyrrhotiteFe7S8
S MolybdeniteMoS2
S AcanthiteAg2S
S BorniteCu5FeS4
S PlumbojarositePb0.5Fe33+(SO4)2(OH)6
S StephaniteAg5SbS4
S Galena (var: Argentiferous Galena)PbS
S GypsumCaSO4 · 2H2O
S BaryteBaSO4
ClChlorine
Cl ChlorargyriteAgCl
Cl MimetitePb5(AsO4)3Cl
KPotassium
K PhlogopiteKMg3(AlSi3O10)(OH)2
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca DolomiteCaMg(CO3)2
Ca Dolomite (var: Ferroan Dolomite)Ca(Mg,Fe)(CO3)2
Ca CalciteCaCO3
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca AndraditeCa3Fe23+(SiO4)3
Ca AnkeriteCa(Fe2+,Mg)(CO3)2
Ca WollastoniteCaSiO3
Ca DiopsideCaMgSi2O6
Ca ScheeliteCa(WO4)
Ca FluoriteCaF2
Ca GrossularCa3Al2(SiO4)3
Ca Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Ca GypsumCaSO4 · 2H2O
MnManganese
Mn HübneriteMnWO4
Mn Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Mn PyrolusiteMn4+O2
Mn PsilomelaneMn, O
FeIron
Fe SideriteFeCO3
Fe PyriteFeS2
Fe Dolomite (var: Ferroan Dolomite)Ca(Mg,Fe)(CO3)2
Fe Goethiteα-Fe3+O(OH)
Fe Limonite(Fe,O,OH,H2O)
Fe ChalcopyriteCuFeS2
Fe PyrrhotiteFe7S8
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Fe MagnetiteFe2+Fe23+O4
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe AlmandineFe32+Al2(SiO4)3
Fe Cordierite(Mg,Fe)2Al3(AlSi5O18)
Fe AndraditeCa3Fe23+(SiO4)3
Fe AnkeriteCa(Fe2+,Mg)(CO3)2
Fe BorniteCu5FeS4
Fe Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Fe HematiteFe2O3
Fe PlumbojarositePb0.5Fe33+(SO4)2(OH)6
Fe Hematite (var: Specularite)Fe2O3
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
NiNickel
Ni Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
CuCopper
Cu BrochantiteCu4(SO4)(OH)6
Cu MalachiteCu2(CO3)(OH)2
Cu ChalcociteCu2S
Cu ChalcopyriteCuFeS2
Cu CopperCu
Cu AzuriteCu3(CO3)2(OH)2
Cu BorniteCu5FeS4
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Cu CupriteCu2O
Cu TenoriteCuO
ZnZinc
Zn HemimorphiteZn4Si2O7(OH)2 · H2O
Zn SmithsoniteZnCO3
Zn SphaleriteZnS
Zn GahniteZnAl2O4
Zn Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
AsArsenic
As MimetitePb5(AsO4)3Cl
MoMolybdenum
Mo WulfenitePb(MoO4)
Mo MolybdeniteMoS2
AgSilver
Ag SilverAg
Ag AcanthiteAg2S
Ag ChlorargyriteAgCl
Ag StephaniteAg5SbS4
Ag Sylvanite(Au,Ag)2Te4
SbAntimony
Sb StephaniteAg5SbS4
TeTellurium
Te Sylvanite(Au,Ag)2Te4
BaBarium
Ba BaryteBaSO4
WTungsten
W HübneriteMnWO4
W ScheeliteCa(WO4)
AuGold
Au GoldAu
Au Sylvanite(Au,Ag)2Te4
PbLead
Pb GalenaPbS
Pb WulfenitePb(MoO4)
Pb AnglesitePbSO4
Pb CerussitePbCO3
Pb MimetitePb5(AsO4)3Cl
Pb PlumbojarositePb0.5Fe33+(SO4)2(OH)6
Pb Galena (var: Argentiferous Galena)PbS

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Crawford, R. D. (1910). A preliminary report on the geology of the Monarch mining district, Chaffee County, Colorado. Denver, Colo.: Smith-Brooks Print. Co., State printers.
McClelland G. Dings and C.S. Robinson (1957), Geology and Ore Deposits of the Garfield Quadrangle, Colorado, USGS Professional Paper 289.

Localities in this Region


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