SUPPORT US. Covid-19 has significantly affected our fundraising. Please help!
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsBooks & Magazines
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Red Cloud Mine (Chicago; Colorado Occurrence), Gold Hill Mining District, Boulder Co., Colorado, USAi
Regional Level Types
Red Cloud Mine (Chicago; Colorado Occurrence)Mine
Gold Hill Mining DistrictMining District
Boulder Co.County
ColoradoState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
Key
Latitude & Longitude (WGS84):
40° 3' 19'' North , 105° 25' 9'' West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~0km
Locality type:


A gold mine.
The "type locality" for henryite of Endlich.

Select Mineral List Type

Standard Detailed Gallery Strunz Dana Chemical Elements

Mineral List


20 valid minerals. 1 (FRL) - first recorded locality of unapproved mineral/variety/etc.

Detailed Mineral List:

Altaite
Formula: PbTe
Reference: Dana 6: 11, 1089; Dana 7:I:206, 424.; William Crowley Kelly, Edwin Newell Goddard (1969) Telluride Ores of Boulder County, Colorado. GSA Memoir 109.
Calaverite
Formula: AuTe2
Reference: Minerals of Colorado (1997) Eckel, E. B.
Chalcopyrite
Formula: CuFeS2
Reference: Dana 6: 11, 1089; Dana 7:I:206, 424.
Chlorargyrite
Formula: AgCl
Reference: Minerals of Colorado (1997) Eckel, E. B.
Empressite
Formula: AgTe
Reference: American Mineralogist (1949) 34:341-382
Galena
Formula: PbS
Reference: Minerals of Colorado (1997) Eckel, E. B.
Gold
Formula: Au
Reference: Dana 6: 11, 1089; Dana 7:I:206, 424.
'Henryite (of Endlich)' (FRL)
Type Locality:
Reference: David von Bargen
Hessite
Formula: Ag2Te
Reference: Steve Sorrell Collection (ex Colorado School of Mines Geology Museum)
Iodargyrite
Formula: AgI
Reference: Minerals of Colorado (1997) Eckel, E. B.
Montanite ?
Formula: Bi2(TeO6) · 2H2O
Reference: Minerals of Colorado (1997) E.B. Eckel
Petzite
Formula: Ag3AuTe2
Reference: American Mineralogist (1949) 34:341-382
Pyrite
Formula: FeS2
Reference: Dana 6: 11, 1089; Dana 7:I:206, 424.; American Mineralogist (1949) 34:341-382
Quartz
Formula: SiO2
Reference: Minerals of Colorado (1997) Eckel, E. B.
Siderite
Formula: FeCO3
Reference: Minerals of Colorado (1997) Eckel, E. B.
Sphalerite
Formula: ZnS
Reference: Dana 6: 11, 1089; Dana 7:I:206, 424.
Stützite
Formula: Ag5-xTe3, x = 0.24-0.36
Reference: Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
Sylvanite
Formula: (Au,Ag)2Te4
Reference: Minerals of Colorado (1997) Eckel, E. B.
Tellurium
Formula: Te
Reference: Dana 6: 11, 1089; Dana 7:I:206, 424.
Tellurobismuthite
Formula: Bi2Te3
Reference: Rolf Luetcke
Tetradymite
Formula: Bi2Te2S
Reference: American Mineralogist (1949) 34:341-382

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Tellurium1.CC.10Te
Group 2 - Sulphides and Sulfosalts
Altaite2.CD.10PbTe
Calaverite2.EA.10AuTe2
Chalcopyrite2.CB.10aCuFeS2
Empressite2.CB.80AgTe
Galena2.CD.10PbS
Hessite2.BA.60Ag2Te
Petzite2.BA.75Ag3AuTe2
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Stützite2.BA.65Ag5-xTe3, x = 0.24-0.36
Sylvanite2.EA.05(Au,Ag)2Te4
Tellurobismuthite2.DC.05Bi2Te3
Tetradymite2.DC.05Bi2Te2S
Group 3 - Halides
Chlorargyrite3.AA.15AgCl
Iodargyrite3.AA.10AgI
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Montanite ?7.CD.60Bi2(TeO6) · 2H2O
Unclassified Minerals, Rocks, etc.
'Henryite (of Endlich)' (TL)-

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
Altaite2.8.1.3PbTe
Empressite2.8.25.AgTe
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
Tellurobismuthite2.11.7.2Bi2Te3
Tetradymite2.11.7.1Bi2Te2S
AmBnXp, with (m+n):p = 1:2
Calaverite2.12.13.2AuTe2
Pyrite2.12.1.1FeS2
Sylvanite2.12.13.3(Au,Ag)2Te4
Miscellaneous
Stützite2.16.13.1Ag5-xTe3, x = 0.24-0.36
Group 9 - NORMAL HALIDES
AX
Chlorargyrite9.1.4.1AgCl
Iodargyrite9.1.5.1AgI
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Siderite14.1.1.3FeCO3
Group 33 - SELENATES AND TELLURATES
(AB)m(XO6)·xH2O, where x can equal zero
Montanite ?33.2.2.1Bi2(TeO6) · 2H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Henryite (of Endlich)' (FRL)-

List of minerals for each chemical element

HHydrogen
H MontaniteBi2(TeO6) · 2H2O
CCarbon
C SideriteFeCO3
OOxygen
O SideriteFeCO3
O QuartzSiO2
O MontaniteBi2(TeO6) · 2H2O
SiSilicon
Si QuartzSiO2
SSulfur
S PyriteFeS2
S SphaleriteZnS
S ChalcopyriteCuFeS2
S GalenaPbS
S TetradymiteBi2Te2S
ClChlorine
Cl ChlorargyriteAgCl
FeIron
Fe PyriteFeS2
Fe ChalcopyriteCuFeS2
Fe SideriteFeCO3
CuCopper
Cu ChalcopyriteCuFeS2
ZnZinc
Zn SphaleriteZnS
AgSilver
Ag StütziteAg5-xTe3, x = 0.24-0.36
Ag Sylvanite(Au,Ag)2Te4
Ag ChlorargyriteAgCl
Ag IodargyriteAgI
Ag PetziteAg3AuTe2
Ag EmpressiteAgTe
Ag HessiteAg2Te
TeTellurium
Te AltaitePbTe
Te TelluriumTe
Te StütziteAg5-xTe3, x = 0.24-0.36
Te Sylvanite(Au,Ag)2Te4
Te CalaveriteAuTe2
Te PetziteAg3AuTe2
Te TetradymiteBi2Te2S
Te EmpressiteAgTe
Te HessiteAg2Te
Te TellurobismuthiteBi2Te3
Te MontaniteBi2(TeO6) · 2H2O
IIodine
I IodargyriteAgI
AuGold
Au GoldAu
Au Sylvanite(Au,Ag)2Te4
Au CalaveriteAuTe2
Au PetziteAg3AuTe2
PbLead
Pb AltaitePbTe
Pb GalenaPbS
BiBismuth
Bi TetradymiteBi2Te2S
Bi TellurobismuthiteBi2Te3
Bi MontaniteBi2(TeO6) · 2H2O

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Dana 6: 11, 1089.
Dana 7:I: 206, 424.

Other Regions, Features and Areas containing this locality

North America
North America PlateTectonic Plate

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.
 
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2020, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: September 21, 2020 20:34:56 Page generated: May 10, 2020 00:30:49
Go to top of page