Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
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 ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced 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 MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Black Cloud Mine, Teller County, Colorado, USAi
Regional Level Types
Black Cloud MineMine
Teller CountyCounty
ColoradoState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
01369350017272057013850.jpg
Looking Down Into the Main Cut

Black Cloud Mine, Teller County, Colorado, USA
00552240017271923248116.jpg
Fluocerite-(Ce)

Black Cloud Mine, Teller County, Colorado, USA
02701060017272019688660.jpg
Samarskite-(Y)

Black Cloud Mine, Teller County, Colorado, USA
01369350017272057013850.jpg
Looking Down Into the Main Cut

Black Cloud Mine, Teller County, Colorado, USA
00552240017271923248116.jpg
Fluocerite-(Ce)

Black Cloud Mine, Teller County, Colorado, USA
02701060017272019688660.jpg
Samarskite-(Y)

Black Cloud Mine, Teller County, Colorado, USA
01369350017272057013850.jpg
Looking Down Into the Main Cut

Black Cloud Mine, Teller County, Colorado, USA
00552240017271923248116.jpg
Fluocerite-(Ce)

Black Cloud Mine, Teller County, Colorado, USA
Latitude & Longitude (WGS84):
38° 56' 17'' North , 105° 12' 47'' West
Latitude & Longitude (decimal):
38.93833,-105.21333
GRN:
N26W60
Type:
Mine
Köppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Divide127 (2011)4.9km
Florissant104 (2011)6.6km
Midland156 (2011)10.0km
Woodland Park7,222 (2017)14.9km
Green Mountain Falls656 (2017)17.0km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Lake George Gem & Mineral clubLake George, Colorado13km
Colorado Springs Mineral SocietyColorado Springs, Colorado36km
Mindat Locality ID:
26810
Long-form identifier:
mindat:1:2:26810:2
GUID (UUID V4):
0
Other/historical names associated with this locality:
Black Cloud pegmatite; Spillman Prospect


A pegmatite mine located in the NE¼. NE¼ sec. 9, T.13S., R.70W.

Mineralization is a zoned pegmatite body in granite. Core zone: quartz; outer zone: quartz-feldspar-fluorite.

Workings include a large open cut with 2 benches.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


22 valid minerals.

Rock Types Recorded

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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Allanite-(Ce)
Formula: (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
ⓘ Bastnäsite-(Ce)
Formula: Ce(CO3)F
ⓘ Bertrandite
Formula: Be4(Si2O7)(OH)2
ⓘ Beryl
Formula: Be3Al2(Si6O18)
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Cassiterite
Formula: SnO2
ⓘ Cerianite-(Ce)
Formula: (Ce4+,Th)O2
ⓘ 'Chlorite Group'
ⓘ 'Columbite-(Fe)-Columbite-(Mn) Series'
ⓘ 'Fergusonite'
ⓘ Fluocerite-(Ce)
Formula: CeF3
ⓘ Fluorite
Formula: CaF2
ⓘ 'Gadolinite'
ⓘ Kaolinite
Formula: Al2(Si2O5)(OH)4
ⓘ 'Limonite'
ⓘ Microcline
Formula: K(AlSi3O8)
ⓘ 'Microlite Group'
Formula: A2-mTa2X6-wZ-n
ⓘ Monazite-(Ce)
Formula: Ce(PO4)
ⓘ 'Monazite Group'
Formula: REE(PO4)
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Opal
Formula: SiO2 · nH2O
ⓘ 'Pyrochlore Group'
Formula: A2Nb2(O,OH)6Z
ⓘ Quartz
Formula: SiO2
ⓘ Samarskite-(Y)
Formula: YFe3+Nb2O8
ⓘ Synchysite-(Y)
Formula: CaY(CO3)2F
ⓘ 'Tantalite'
Formula: (Mn,Fe)(Ta,Nb)2O6
ⓘ Thorite
Formula: Th(SiO4)
ⓘ Törnebohmite-(Ce)
Formula: Ce2Al(SiO4)2(OH)
ⓘ 'Wad'
ⓘ Xenotime-(Y)
Formula: Y(PO4)
ⓘ Yttrotantalite-(Y)
Formula: (Y,U,Fe2+)(Ta,Nb)(O,OH)4
ⓘ Zircon
Formula: Zr(SiO4)

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
ⓘFluorite3.AB.25CaF2
ⓘFluocerite-(Ce)3.AC.15CeF3
Group 4 - Oxides and Hydroxides
ⓘ'Microlite Group'4.00.A2-mTa2X6-wZ-n
ⓘ'Pyrochlore Group'4.00.A2Nb2(O,OH)6Z
ⓘQuartz4.DA.05SiO2
ⓘOpal4.DA.10SiO2 · nH2O
ⓘCassiterite4.DB.05SnO2
ⓘSamarskite-(Y)4.DB.25YFe3+Nb2O8
ⓘYttrotantalite-(Y)4.DG.10(Y,U,Fe2+)(Ta,Nb)(O,OH)4
ⓘCerianite-(Ce)4.DL.05(Ce4+,Th)O2
Group 5 - Nitrates and Carbonates
ⓘBastnäsite-(Ce)5.BD.20aCe(CO3)F
ⓘSynchysite-(Y)5.BD.20cCaY(CO3)2F
Group 8 - Phosphates, Arsenates and Vanadates
ⓘXenotime-(Y)8.AD.35Y(PO4)
ⓘMonazite-(Ce)8.AD.50Ce(PO4)
Group 9 - Silicates
ⓘThorite9.AD.30Th(SiO4)
ⓘZircon9.AD.30Zr(SiO4)
ⓘTörnebohmite-(Ce)9.AG.45Ce2Al(SiO4)2(OH)
ⓘBertrandite9.BD.05Be4(Si2O7)(OH)2
ⓘAllanite-(Ce)9.BG.05b(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
ⓘBeryl9.CJ.05Be3Al2(Si6O18)
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘKaolinite9.ED.05Al2(Si2O5)(OH)4
ⓘMicrocline9.FA.30K(AlSi3O8)
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Chlorite Group'-
ⓘ'Limonite'-
ⓘ'Monazite Group'-REE(PO4)
ⓘ'Tantalite'-(Mn,Fe)(Ta,Nb)2O6
ⓘ'Wad'-
ⓘ'Columbite-(Fe)-Columbite-(Mn) Series'-
ⓘ'Gadolinite'-
ⓘ'Fergusonite'-
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Hⓘ BertranditeBe4(Si2O7)(OH)2
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ KaoliniteAl2(Si2O5)(OH)4
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ OpalSiO2 · nH2O
Hⓘ Pyrochlore GroupA2Nb2(O,OH)6Z
Hⓘ Törnebohmite-(Ce)Ce2Al(SiO4)2(OH)
Hⓘ Yttrotantalite-(Y)(Y,U,Fe2+)(Ta,Nb)(O,OH)4
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
BeBeryllium
Beⓘ BertranditeBe4(Si2O7)(OH)2
Beⓘ BerylBe3Al2(Si6O18)
CCarbon
Cⓘ Bastnäsite-(Ce)Ce(CO3)F
Cⓘ Synchysite-(Y)CaY(CO3)2F
OOxygen
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Oⓘ Bastnäsite-(Ce)Ce(CO3)F
Oⓘ BertranditeBe4(Si2O7)(OH)2
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ BerylBe3Al2(Si6O18)
Oⓘ CassiteriteSnO2
Oⓘ Cerianite-(Ce)(Ce4+,Th)O2
Oⓘ KaoliniteAl2(Si2O5)(OH)4
Oⓘ MicroclineK(AlSi3O8)
Oⓘ Monazite GroupREE(PO4)
Oⓘ Monazite-(Ce)Ce(PO4)
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ OpalSiO2 · nH2O
Oⓘ Pyrochlore GroupA2Nb2(O,OH)6Z
Oⓘ QuartzSiO2
Oⓘ Samarskite-(Y)YFe3+Nb2O8
Oⓘ Synchysite-(Y)CaY(CO3)2F
Oⓘ Tantalite(Mn,Fe)(Ta,Nb)2O6
Oⓘ ThoriteTh(SiO4)
Oⓘ Törnebohmite-(Ce)Ce2Al(SiO4)2(OH)
Oⓘ Xenotime-(Y)Y(PO4)
Oⓘ Yttrotantalite-(Y)(Y,U,Fe2+)(Ta,Nb)(O,OH)4
Oⓘ ZirconZr(SiO4)
Oⓘ Columbite-(Fe)-Columbite-(Mn) Series
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fⓘ Bastnäsite-(Ce)Ce(CO3)F
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ Fluocerite-(Ce)CeF3
Fⓘ FluoriteCaF2
Fⓘ Synchysite-(Y)CaY(CO3)2F
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ BerylBe3Al2(Si6O18)
Alⓘ KaoliniteAl2(Si2O5)(OH)4
Alⓘ MicroclineK(AlSi3O8)
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Törnebohmite-(Ce)Ce2Al(SiO4)2(OH)
Alⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Siⓘ BertranditeBe4(Si2O7)(OH)2
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ BerylBe3Al2(Si6O18)
Siⓘ KaoliniteAl2(Si2O5)(OH)4
Siⓘ MicroclineK(AlSi3O8)
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ OpalSiO2 · nH2O
Siⓘ QuartzSiO2
Siⓘ ThoriteTh(SiO4)
Siⓘ Törnebohmite-(Ce)Ce2Al(SiO4)2(OH)
Siⓘ ZirconZr(SiO4)
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
PPhosphorus
Pⓘ Monazite GroupREE(PO4)
Pⓘ Monazite-(Ce)Ce(PO4)
Pⓘ Xenotime-(Y)Y(PO4)
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
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
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Caⓘ FluoriteCaF2
Caⓘ Synchysite-(Y)CaY(CO3)2F
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
MnManganese
Mnⓘ Tantalite(Mn,Fe)(Ta,Nb)2O6
Mnⓘ Columbite-(Fe)-Columbite-(Mn) Series
FeIron
Feⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ Samarskite-(Y)YFe3+Nb2O8
Feⓘ Tantalite(Mn,Fe)(Ta,Nb)2O6
Feⓘ Yttrotantalite-(Y)(Y,U,Fe2+)(Ta,Nb)(O,OH)4
Feⓘ Columbite-(Fe)-Columbite-(Mn) Series
YYttrium
Yⓘ Samarskite-(Y)YFe3+Nb2O8
Yⓘ Synchysite-(Y)CaY(CO3)2F
Yⓘ Xenotime-(Y)Y(PO4)
Yⓘ Yttrotantalite-(Y)(Y,U,Fe2+)(Ta,Nb)(O,OH)4
ZrZirconium
Zrⓘ ZirconZr(SiO4)
NbNiobium
Nbⓘ Pyrochlore GroupA2Nb2(O,OH)6Z
Nbⓘ Samarskite-(Y)YFe3+Nb2O8
Nbⓘ Tantalite(Mn,Fe)(Ta,Nb)2O6
Nbⓘ Yttrotantalite-(Y)(Y,U,Fe2+)(Ta,Nb)(O,OH)4
Nbⓘ Columbite-(Fe)-Columbite-(Mn) Series
SnTin
Snⓘ CassiteriteSnO2
CeCerium
Ceⓘ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Ceⓘ Bastnäsite-(Ce)Ce(CO3)F
Ceⓘ Cerianite-(Ce)(Ce4+,Th)O2
Ceⓘ Fluocerite-(Ce)CeF3
Ceⓘ Monazite-(Ce)Ce(PO4)
Ceⓘ Törnebohmite-(Ce)Ce2Al(SiO4)2(OH)
TaTantalum
Taⓘ Microlite GroupA2-mTa2X6-wZ-n
Taⓘ Tantalite(Mn,Fe)(Ta,Nb)2O6
Taⓘ Yttrotantalite-(Y)(Y,U,Fe2+)(Ta,Nb)(O,OH)4
ThThorium
Thⓘ Cerianite-(Ce)(Ce4+,Th)O2
Thⓘ ThoriteTh(SiO4)
UUranium
Uⓘ Yttrotantalite-(Y)(Y,U,Fe2+)(Ta,Nb)(O,OH)4

Other Regions, Features and Areas containing this locality

North AmericaContinent
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.

References

Rocks & Minerals (xxxx) 63: 457.
Meeves, H.; Harrer, C.M.; Salsbury, M.H.; Konselman, A.S; Shannon, S.S. Jnr. (1966) Reconnaissance of beryllium-bearing pegmatite deposits in six western states: Arizona, Colorado, New Mexico, South Dakota, Utah, and Wyoming. Bureau of Mines Information Circular 8298. United States Department of the Interior 34 pp.p.31 - (Table A-1)
Quick NavTopMineral ListRock TypesOther RegionsReferences
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 3, 2026 04:39:31 Page updated: November 28, 2025 18:57:44
Go to top of page