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Sugarloaf Mining District, Boulder County, Colorado, USAi
Regional Level Types
Sugarloaf Mining DistrictMining District
Boulder CountyCounty
ColoradoState
USACountry

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PhotosMapsSearch
04156260017272088967305.jpg
Jan Hall (NIST) at mine entrance for laser tests, 1963

Poormans Relief, Sugarloaf Mining District, Boulder County, Colorado, USA
06338920017272088967032.jpg
Sylvanite, etc.

Alpine Horn, Sugarloaf Mining District, Boulder County, Colorado, USA
08707730017272088965123.jpg
Pyrite

Krakajak Number 1 lode, Sugarloaf Mining District, Boulder County, Colorado, USA
05212080017272011478011.jpg
Jan Hall (NIST) at mine entrance for laser tests, 1963

Poormans Relief, Sugarloaf Mining District, Boulder County, Colorado, USA
06338920017272088967032.jpg
Sylvanite, etc.

Alpine Horn, Sugarloaf Mining District, Boulder County, Colorado, USA
08707730017272088965123.jpg
Pyrite

Krakajak Number 1 lode, Sugarloaf Mining District, Boulder County, Colorado, USA
02263050017272088976881.jpg
Jan Hall (NIST) at mine entrance for laser tests, 1963

Poormans Relief, Sugarloaf Mining District, Boulder County, Colorado, USA
06338920017272088967032.jpg
Sylvanite, etc.

Alpine Horn, Sugarloaf Mining District, Boulder County, Colorado, USA
Neighbouring regions:
Boulder County Tungsten Mining District, Boulder County, Colorado, USA
Type:
Mining District
Largest Settlements:
PlacePopulation
Mountain Meadows274 (2011)
Sugarloaf261 (2011)
Mindat Locality ID:
66751
Long-form identifier:
mindat:1:2:66751:6
GUID (UUID V4):
0


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

37 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:

ⓘ Acanthite
Formula: Ag2S
Description: Kosnar and Miller (1976) reported specimens of chalcopyrite that are often associated with argentite and tabular barite crystals.
ⓘ Allophane
Formula: (Al2O3)(SiO2)1.3-2 · 2.5-3H2O
ⓘ Altaite
Formula: PbTe
ⓘ Analcime
Formula: Na(AlSi2O6) · H2O
ⓘ Azurite
Formula: Cu3(CO3)2(OH)2
ⓘ Baryte
Formula: BaSO4
ⓘ Bismuthinite
Formula: Bi2S3
ⓘ Bismutite
Formula: (BiO)2CO3
ⓘ Bornite
Formula: Cu5FeS4
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Coloradoite
Formula: HgTe
ⓘ Empressite
Formula: AgTe
ⓘ Ferberite
Formula: FeWO4
ⓘ 'Freibergite Subgroup'
Formula: (Ag6,[Ag6]4+)(Cu4 C2+2)Sb4S12S0-1
ⓘ Galena
Formula: PbS
ⓘ Galena var. Silver-bearing Galena
Formula: PbS with Ag
ⓘ 'Heulandite Subgroup' ?
Formula: (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
ⓘ Krennerite
Formula: Au3AgTe8
ⓘ Linarite
Formula: PbCu(SO4)(OH)2
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ Melonite
Formula: NiTe2
ⓘ Molybdenite
Formula: MoS2
ⓘ Native Bismuth
Formula: Bi
References:
Dana 7:I:135.
ⓘ Native Gold
Formula: Au
Localities: Reported from at least 25 localities in this region.
ⓘ Native Mercury
Formula: Hg
ⓘ Native Silver
Formula: Ag
ⓘ Native Tellurium
Formula: Te
ⓘ Petzite
Formula: Ag3AuTe2
ⓘ Posnjakite
Formula: Cu4(SO4)(OH)6 · H2O
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
Localities: Reported from at least 6 localities in this region.
ⓘ Rickardite
Formula: Cu7Te5
ⓘ Scheelite
Formula: Ca(WO4)
ⓘ Scolecite ?
Formula: CaAl2Si3O10 · 3H2O
ⓘ Sphalerite
Formula: ZnS
ⓘ Stephanite
Formula: Ag5SbS4
ⓘ Stromeyerite
Formula: AgCuS
ⓘ Sylvanite
Formula: AgAuTe4
ⓘ Tellurite
Formula: TeO2
ⓘ 'Tennantite Subgroup'
Formula: Cu6(Cu4C2+2)As4S12S
ⓘ 'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
ⓘ Weissite ?
Formula: Cu2-xTe

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold1.AA.05Au
ⓘNative Silver1.AA.05Ag
ⓘNative Mercury1.AD.05Hg
ⓘNative Bismuth1.CA.05Bi
ⓘNative Tellurium1.CC.10Te
Group 2 - Sulphides and Sulfosalts
ⓘBornite2.BA.15Cu5FeS4
ⓘRickardite2.BA.30Cu7Te5
ⓘWeissite ?2.BA.30Cu2-xTe
ⓘAcanthite2.BA.35Ag2S
ⓘStromeyerite2.BA.40AgCuS
ⓘPetzite2.BA.75Ag3AuTe2
ⓘColoradoite2.CB.05aHgTe
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘEmpressite2.CB.80AgTe
ⓘAltaite2.CD.10PbTe
ⓘGalena2.CD.10PbS
ⓘvar. Silver-bearing Galena2.CD.10PbS with Ag
ⓘBismuthinite2.DB.05Bi2S3
ⓘSylvanite2.EA.05AgAuTe4
ⓘKrennerite2.EA.15Au3AgTe8
ⓘMelonite2.EA.20NiTe2
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite2.EB.05aFeS2
ⓘ'Freibergite Subgroup'2.GB.05(Ag6,[Ag6]4+)(Cu4 C2+2)Sb4S12S0-1
ⓘ'Tennantite Subgroup'2.GB.05Cu6(Cu4C2+2)As4S12S
ⓘ'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
ⓘStephanite2.GB.10Ag5SbS4
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘFerberite4.DB.30FeWO4
ⓘTellurite4.DE.20TeO2
Group 5 - Nitrates and Carbonates
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
ⓘBismutite5.BE.25(BiO)2CO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
ⓘLinarite7.BC.65PbCu(SO4)(OH)2
ⓘPosnjakite7.DD.10Cu4(SO4)(OH)6 · H2O
ⓘScheelite7.GA.05Ca(WO4)
Group 9 - Silicates
ⓘAllophane9.ED.20(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
ⓘScolecite ?9.GA.05CaAl2Si3O10 · 3H2O
ⓘAnalcime9.GB.05Na(AlSi2O6) · H2O
Unclassified
ⓘ'Heulandite Subgroup' ?-(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O

List of minerals for each chemical element

HHydrogen
Hⓘ Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Hⓘ AnalcimeNa(AlSi2O6) · H2O
Hⓘ AzuriteCu3(CO3)2(OH)2
Hⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Hⓘ LinaritePbCu(SO4)(OH)2
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ PosnjakiteCu4(SO4)(OH)6 · H2O
Hⓘ ScoleciteCaAl2Si3O10 · 3H2O
CCarbon
Cⓘ AzuriteCu3(CO3)2(OH)2
Cⓘ Bismutite(BiO)2CO3
Cⓘ MalachiteCu2(CO3)(OH)2
OOxygen
Oⓘ Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Oⓘ AnalcimeNa(AlSi2O6) · H2O
Oⓘ AzuriteCu3(CO3)2(OH)2
Oⓘ BaryteBaSO4
Oⓘ Bismutite(BiO)2CO3
Oⓘ FerberiteFeWO4
Oⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Oⓘ LinaritePbCu(SO4)(OH)2
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ PosnjakiteCu4(SO4)(OH)6 · H2O
Oⓘ QuartzSiO2
Oⓘ ScheeliteCa(WO4)
Oⓘ ScoleciteCaAl2Si3O10 · 3H2O
Oⓘ TelluriteTeO2
NaSodium
Naⓘ AnalcimeNa(AlSi2O6) · H2O
Naⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
AlAluminium
Alⓘ Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Alⓘ AnalcimeNa(AlSi2O6) · H2O
Alⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Alⓘ ScoleciteCaAl2Si3O10 · 3H2O
SiSilicon
Siⓘ Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Siⓘ AnalcimeNa(AlSi2O6) · H2O
Siⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Siⓘ QuartzSiO2
Siⓘ ScoleciteCaAl2Si3O10 · 3H2O
SSulfur
Sⓘ AcanthiteAg2S
Sⓘ BaryteBaSO4
Sⓘ BismuthiniteBi2S3
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1
Sⓘ GalenaPbS
Sⓘ LinaritePbCu(SO4)(OH)2
Sⓘ MolybdeniteMoS2
Sⓘ PosnjakiteCu4(SO4)(OH)6 · H2O
Sⓘ PyriteFeS2
Sⓘ SphaleriteZnS
Sⓘ StephaniteAg5SbS4
Sⓘ StromeyeriteAgCuS
Sⓘ Tennantite SubgroupCu6(Cu4C22+)As4S12S
Sⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Sⓘ Galena var. Silver-bearing GalenaPbS with Ag
KPotassium
Kⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
CaCalcium
Caⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Caⓘ ScheeliteCa(WO4)
Caⓘ ScoleciteCaAl2Si3O10 · 3H2O
FeIron
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ FerberiteFeWO4
Feⓘ PyriteFeS2
NiNickel
Niⓘ MeloniteNiTe2
CuCopper
Cuⓘ AzuriteCu3(CO3)2(OH)2
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1
Cuⓘ LinaritePbCu(SO4)(OH)2
Cuⓘ MalachiteCu2(CO3)(OH)2
Cuⓘ PosnjakiteCu4(SO4)(OH)6 · H2O
Cuⓘ RickarditeCu7Te5
Cuⓘ StromeyeriteAgCuS
Cuⓘ Tennantite SubgroupCu6(Cu4C22+)As4S12S
Cuⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Cuⓘ WeissiteCu2-xTe
ZnZinc
Znⓘ SphaleriteZnS
AsArsenic
Asⓘ Tennantite SubgroupCu6(Cu4C22+)As4S12S
MoMolybdenum
Moⓘ MolybdeniteMoS2
AgSilver
Agⓘ AcanthiteAg2S
Agⓘ EmpressiteAgTe
Agⓘ Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1
Agⓘ KrenneriteAu3AgTe8
Agⓘ PetziteAg3AuTe2
Agⓘ Native SilverAg
Agⓘ StephaniteAg5SbS4
Agⓘ StromeyeriteAgCuS
Agⓘ SylvaniteAgAuTe4
Agⓘ Galena var. Silver-bearing GalenaPbS with Ag
SbAntimony
Sbⓘ Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1
Sbⓘ StephaniteAg5SbS4
Sbⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
TeTellurium
Teⓘ AltaitePbTe
Teⓘ ColoradoiteHgTe
Teⓘ EmpressiteAgTe
Teⓘ KrenneriteAu3AgTe8
Teⓘ MeloniteNiTe2
Teⓘ PetziteAg3AuTe2
Teⓘ RickarditeCu7Te5
Teⓘ SylvaniteAgAuTe4
Teⓘ TelluriteTeO2
Teⓘ Native TelluriumTe
Teⓘ WeissiteCu2-xTe
BaBarium
Baⓘ BaryteBaSO4
WTungsten
Wⓘ FerberiteFeWO4
Wⓘ ScheeliteCa(WO4)
AuGold
Auⓘ Native GoldAu
Auⓘ KrenneriteAu3AgTe8
Auⓘ PetziteAg3AuTe2
Auⓘ SylvaniteAgAuTe4
HgMercury
Hgⓘ ColoradoiteHgTe
Hgⓘ Native MercuryHg
PbLead
Pbⓘ AltaitePbTe
Pbⓘ GalenaPbS
Pbⓘ LinaritePbCu(SO4)(OH)2
Pbⓘ Galena var. Silver-bearing GalenaPbS with Ag
BiBismuth
Biⓘ Native BismuthBi
Biⓘ BismuthiniteBi2S3
Biⓘ Bismutite(BiO)2CO3

Fossils

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Localities in this Region

USA
USA

Other Regions, Features and Areas that Intersect

North AmericaContinent
North America PlateTectonic Plate

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