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Ingram mine (Valley Forge Occurrence; Critic and Railroad Boy; Sunshine; Three Brothers; Atchison; Belle; Golden Eagle; Melvina; Baron; Richmond), Gold Hill District, Boulder Co., Colorado, USAi
Regional Level Types
Ingram mine (Valley Forge Occurrence; Critic and Railroad Boy; Sunshine; Three Brothers; Atchison; Belle; Golden Eagle; Melvina; Baron; Richmond)Mine
Gold Hill DistrictMining District
Boulder Co.County
ColoradoState
USACountry

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Key
Latitude & Longitude (WGS84):
40° 3' 7'' North , 105° 23' 12'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Sunshine230 (2011)2.3km
Gold Hill230 (2011)2.3km
Crisman186 (2011)2.5km
Mountain Meadows274 (2011)3.2km
Sugarloaf261 (2011)4.3km


REF:Deposit:: LOVERING AND GODDARD, 1950, USGS P. P. 223, PL 23
Deposit:: CONSV. DIV. COMP. DATE, 10,62
Commodities (Major) - Gold
Development Status: Occurrence

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 at this locality.


Mineral List


19 valid minerals.

Detailed Mineral List:

Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Reference: U.S. Geological Survey Professional Paper 223
Calaverite
Formula: AuTe2
Reference: Minerals of Colorado (1997) E.B. Eckel
Chalcopyrite
Formula: CuFeS2
Reference: Minerals of Colorado (1997) E.B. Eckel; U.S. Geological Survey Professional Paper 223
Coloradoite
Formula: HgTe
Reference: Minerals of Colorado (1997) E.B. Eckel
Galena
Formula: PbS
Reference: U.S. Geological Survey Professional Paper 223
Gold
Formula: Au
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Hessite
Formula: Ag2Te
Reference: Minerals of Colorado (1997) E.B. Eckel
Melonite
Formula: NiTe2
Reference: Minerals of Colorado (1997) E.B. Eckel
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: U.S. Geological Survey Professional Paper 223
Muscovite var: Sericite
Formula: KAl2(AlSi3O10)(OH)2
Reference: U.S. Geological Survey Professional Paper 223
Nagyágite
Formula: [Pb3(Pb,Sb)3S6](Au,Te)3
Reference: Minerals of Colorado (1997) E.B. Eckel
Petzite
Formula: Ag3AuTe2
Reference: U.S. Geological Survey Professional Paper 223
Pyrargyrite
Formula: Ag3SbS3
Reference: Minerals of Colorado (1997) E.B. Eckel
Pyrite
Formula: FeS2
Reference: Minerals of Colorado (1997) E.B. Eckel; U.S. Geological Survey Professional Paper 223
Quartz
Formula: SiO2
Reference: Minerals of Colorado (1997) E.B. Eckel; U.S. Geological Survey Professional Paper 223
Rhodochrosite
Formula: MnCO3
Reference: U.S. Geological Survey Professional Paper 223
Sphalerite
Formula: ZnS
Reference: U.S. Geological Survey Professional Paper 223
Sylvanite
Formula: (Au,Ag)2Te4
Reference: Minerals of Colorado (1997) E.B. Eckel; U.S. Geological Survey Professional Paper 223
Tellurium
Formula: Te
Reference: Minerals of Colorado (1997) E.B. Eckel
Tetrahedrite
Formula: Cu6Cu4(Fe2+,Zn)2Sb4S12S
Reference: U.S. Geological Survey Professional Paper 223

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Tellurium1.CC.10Te
Group 2 - Sulphides and Sulfosalts
Calaverite2.EA.10AuTe2
Chalcopyrite2.CB.10aCuFeS2
Coloradoite2.CB.05aHgTe
Galena2.CD.10PbS
Hessite2.BA.60Ag2Te
Melonite2.EA.20NiTe2
Nagyágite2.HB.20a[Pb3(Pb,Sb)3S6](Au,Te)3
Petzite2.BA.75Ag3AuTe2
Pyrargyrite2.GA.05Ag3SbS3
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Sylvanite2.EA.05(Au,Ag)2Te4
Tetrahedrite2.GB.05Cu6Cu4(Fe2+,Zn)2Sb4S12S
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Rhodochrosite5.AB.05MnCO3
Group 9 - Silicates
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Sericite9.EC.15KAl2(AlSi3O10)(OH)2

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Semi-metals and non-metals
Tellurium1.3.4.2Te
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Hessite2.4.2.1Ag2Te
Petzite2.4.3.3Ag3AuTe2
AmXp, with m:p = 1:1
Coloradoite2.8.2.5HgTe
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 2:3
Nagyágite2.11.10.1[Pb3(Pb,Sb)3S6](Au,Te)3
AmBnXp, with (m+n):p = 1:2
Calaverite2.12.13.2AuTe2
Melonite2.12.14.1NiTe2
Pyrite2.12.1.1FeS2
Sylvanite2.12.13.3(Au,Ag)2Te4
Group 3 - SULFOSALTS
3 <ø < 4
Tetrahedrite3.3.6.1Cu6Cu4(Fe2+,Zn)2Sb4S12S
ø = 3
Pyrargyrite3.4.1.2Ag3SbS3
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Rhodochrosite14.1.1.4MnCO3
AB(XO3)2
Ankerite14.2.1.2Ca(Fe2+,Mg)(CO3)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
Muscovite
var: Sericite
-KAl2(AlSi3O10)(OH)2

List of minerals for each chemical element

HHydrogen
H Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
CCarbon
C AnkeriteCa(Fe2+,Mg)(CO3)2
C RhodochrositeMnCO3
OOxygen
O QuartzSiO2
O AnkeriteCa(Fe2+,Mg)(CO3)2
O RhodochrositeMnCO3
O Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
O MuscoviteKAl2(AlSi3O10)(OH)2
MgMagnesium
Mg AnkeriteCa(Fe2+,Mg)(CO3)2
AlAluminium
Al Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Si QuartzSiO2
Si Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
SSulfur
S PyrargyriteAg3SbS3
S Nagyágite[Pb3(Pb,Sb)3S6](Au,Te)3
S PyriteFeS2
S ChalcopyriteCuFeS2
S GalenaPbS
S TetrahedriteCu6Cu4(Fe2+,Zn)2Sb4S12S
S SphaleriteZnS
KPotassium
K Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca AnkeriteCa(Fe2+,Mg)(CO3)2
MnManganese
Mn RhodochrositeMnCO3
FeIron
Fe PyriteFeS2
Fe ChalcopyriteCuFeS2
Fe TetrahedriteCu6Cu4(Fe2+,Zn)2Sb4S12S
Fe AnkeriteCa(Fe2+,Mg)(CO3)2
NiNickel
Ni MeloniteNiTe2
CuCopper
Cu ChalcopyriteCuFeS2
Cu TetrahedriteCu6Cu4(Fe2+,Zn)2Sb4S12S
ZnZinc
Zn TetrahedriteCu6Cu4(Fe2+,Zn)2Sb4S12S
Zn SphaleriteZnS
AgSilver
Ag PyrargyriteAg3SbS3
Ag HessiteAg2Te
Ag Sylvanite(Au,Ag)2Te4
Ag PetziteAg3AuTe2
SbAntimony
Sb PyrargyriteAg3SbS3
Sb Nagyágite[Pb3(Pb,Sb)3S6](Au,Te)3
Sb TetrahedriteCu6Cu4(Fe2+,Zn)2Sb4S12S
TeTellurium
Te MeloniteNiTe2
Te HessiteAg2Te
Te Nagyágite[Pb3(Pb,Sb)3S6](Au,Te)3
Te Sylvanite(Au,Ag)2Te4
Te TelluriumTe
Te ColoradoiteHgTe
Te CalaveriteAuTe2
Te PetziteAg3AuTe2
AuGold
Au GoldAu
Au Nagyágite[Pb3(Pb,Sb)3S6](Au,Te)3
Au Sylvanite(Au,Ag)2Te4
Au CalaveriteAuTe2
Au PetziteAg3AuTe2
HgMercury
Hg ColoradoiteHgTe
PbLead
Pb Nagyágite[Pb3(Pb,Sb)3S6](Au,Te)3
Pb GalenaPbS

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
U.S. Geological Survey Professional Paper 223


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