Log InRegister
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreOur ScienceMindat Newsletter [Free Download]Contact Us
Donate to MindatSponsor a PageCorporate SponsorshipSponsored Pages
Learning CenterWhat Is a Mineral?The Most Common Minerals on EarthInformation for EducatorsMindat ArticlesMindat Newsletter [Free Download]The ElementsThe Mineral Quiz
Search FormMinerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDMinerals by CountryAlphabetical Mineral IndexAlphabetical Locality SearchMineral Association SearchList of CountriesLocalities Near MePhoto SearchSearch ArticlesSearch GlossaryThe Rock H. Currier Digital LibraryMore Search Options
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
MineralsPetrologyFossilsMeteoritesGeologic Time
Mining CompaniesStatisticsMineral MuseumsClubs & OrganizationsMineral Shows & EventsDevice SettingsTime Machine
Read DiscussionsIdentification Request
Photo SearchPhoto GalleriesSearch by ColourPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Mammoth Revenue Mine (Mammoth Mine), Platoro Mining District (Ute Mining District), Conejos County, Colorado, USAi
Regional Level Types
Mammoth Revenue Mine (Mammoth Mine)Mine
Platoro Mining District (Ute Mining District)Mining District
Conejos CountyCounty
ColoradoState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearchMineralogy
Latitude & Longitude (WGS84):
37° 20' 48'' North , 106° 32' 4'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Gerrard278 (2011)37.1km
South Fork362 (2017)37.1km
Capulin200 (2011)38.0km
Alpine174 (2011)38.3km
Del Norte1,604 (2017)40.2km
Mindat Locality ID:
30410
Long-form identifier:
mindat:1:2:30410:3
GUID (UUID V4):
0


Ore deposit consists of quartz – pyrite veins, fracture fillings, in north-northwest trending faults. Ore shoots within the vein contain gold tellurides and silver sulphosalts. Wallrock alteration associated with mineralization is relatively minor. The geological literature of the Platoro region mostly concerns the volcanism and caldera development. Adjunct to this, brief reviews of the ore deposits are given by Lipman and Steven (1970) and Lipman (1975).
REF:Deposit:: PATTON, H.B., 1917, GEOLOGY AND ORE DEPOSITS OF THE PLATORO-SUMMITVILLE MINING DISTRICT, COLORADO: CGS BULL. 13.
Deposit:: LIPMAN, P.W., 1974, GEOLOGIC MAP OF THE PLATORO CALDERA AREA, SOUTHEASTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USA
(Aztec; MS 6256; Umbria; MS 6535; Burris; MS 6255; Morning Star; MS 6256; Etruria; MS 6535; Middle; MS 5636; Pavonia; MS 6535; Revenue; MS 5722; Hallam; MS 6255; Auraria; MS 6535; Servia; MS 6535; Hyman; MS 6255; Arms; MS 6256; Mammoth Mine; Mammoth Mill)
Commodities (Major) - Gold, Silver; (Minor) - Lead, Copper; (Trace) - Molybdenum, Antimony, Zinc
Deposit Type: Vein
Development Status: Producer
Deposit Model: 154: Epithermal quartz-alunite Au
Host Rock Unit: La Jara Canyon Member Of Treasure Mountain Tuff
Structure: San Juan Volcanic Field, Platoro Caldera, Summitville Caldera, Platoro Fault Zone, Cornwall Block
Host Rock: Quartz Latite
Tectonic Structure: Central Cordillera (Southern Rocky Mtns)

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


20 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Acanthite
Formula: Ag2S
ⓘ 'Andorite'
Formula: AgPbSb3S6
ⓘ Anhydrite
Formula: CaSO4
ⓘ Arsenopyrite
Formula: FeAsS
ⓘ Baryte
Formula: BaSO4
ⓘ Calcite
Formula: CaCO3
ⓘ Chalcocite
Formula: Cu2S
ⓘ Digenite
Formula: Cu9S5
ⓘ Marcasite
Formula: FeS2
ⓘ Miargyrite
Formula: AgSbS2
ⓘ Molybdenite
Formula: MoS2
ⓘ Native Gold
Formula: Au
ⓘ Native Gold var. Electrum
Formula: (Au,Ag)
ⓘ Native Silver
Formula: Ag
ⓘ Petzite
Formula: Ag3AuTe2
ⓘ Polybasite
Formula: [Ag6Sb2S7][Ag9CuS4]
ⓘ Proustite
Formula: Ag3AsS3
ⓘ Pyrargyrite
Formula: Ag3SbS3
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
ⓘ Quartz var. Chalcedony
Formula: SiO2
ⓘ Sphalerite
Formula: ZnS
ⓘ Zinkenite
Formula: Pb9Sb22S42

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold
var. Electrum
1.AA.05(Au,Ag)
ⓘ1.AA.05Au
ⓘNative Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘDigenite2.BA.10Cu9S5
ⓘAcanthite2.BA.35Ag2S
ⓘPetzite2.BA.75Ag3AuTe2
ⓘSphalerite2.CB.05aZnS
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘMolybdenite2.EA.30MoS2
ⓘMarcasite2.EB.10aFeS2
ⓘArsenopyrite2.EB.20FeAsS
ⓘProustite2.GA.05Ag3AsS3
ⓘPyrargyrite2.GA.05Ag3SbS3
ⓘPolybasite2.GB.15[Ag6Sb2S7][Ag9CuS4]
ⓘMiargyrite2.HA.10AgSbS2
ⓘZinkenite2.JB.35aPb9Sb22S42
Group 4 - Oxides and Hydroxides
ⓘQuartz
var. Chalcedony
4.DA.05SiO2
ⓘ4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘAnhydrite7.AD.30CaSO4
ⓘBaryte7.AD.35BaSO4
Unclassified
ⓘ'Andorite'-AgPbSb3S6

List of minerals for each chemical element

CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ AnhydriteCaSO4
Oⓘ BaryteBaSO4
Oⓘ CalciteCaCO3
Oⓘ Quartz var. ChalcedonySiO2
Oⓘ QuartzSiO2
SiSilicon
Siⓘ Quartz var. ChalcedonySiO2
Siⓘ QuartzSiO2
SSulfur
Sⓘ AcanthiteAg2S
Sⓘ AndoriteAgPbSb3S6
Sⓘ AnhydriteCaSO4
Sⓘ ArsenopyriteFeAsS
Sⓘ BaryteBaSO4
Sⓘ ChalcociteCu2S
Sⓘ DigeniteCu9S5
Sⓘ MarcasiteFeS2
Sⓘ MiargyriteAgSbS2
Sⓘ MolybdeniteMoS2
Sⓘ Polybasite[Ag6Sb2S7][Ag9CuS4]
Sⓘ ProustiteAg3AsS3
Sⓘ PyrargyriteAg3SbS3
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
Sⓘ ZinkenitePb9Sb22S42
CaCalcium
Caⓘ AnhydriteCaSO4
Caⓘ CalciteCaCO3
FeIron
Feⓘ ArsenopyriteFeAsS
Feⓘ MarcasiteFeS2
Feⓘ PyrrhotiteFe1-xS
CuCopper
Cuⓘ ChalcociteCu2S
Cuⓘ DigeniteCu9S5
Cuⓘ Polybasite[Ag6Sb2S7][Ag9CuS4]
ZnZinc
Znⓘ SphaleriteZnS
AsArsenic
Asⓘ ArsenopyriteFeAsS
Asⓘ ProustiteAg3AsS3
MoMolybdenum
Moⓘ MolybdeniteMoS2
AgSilver
Agⓘ AcanthiteAg2S
Agⓘ AndoriteAgPbSb3S6
Agⓘ Native Gold var. Electrum(Au,Ag)
Agⓘ MiargyriteAgSbS2
Agⓘ PetziteAg3AuTe2
Agⓘ Polybasite[Ag6Sb2S7][Ag9CuS4]
Agⓘ ProustiteAg3AsS3
Agⓘ PyrargyriteAg3SbS3
Agⓘ Native SilverAg
SbAntimony
Sbⓘ AndoriteAgPbSb3S6
Sbⓘ MiargyriteAgSbS2
Sbⓘ Polybasite[Ag6Sb2S7][Ag9CuS4]
Sbⓘ PyrargyriteAg3SbS3
Sbⓘ ZinkenitePb9Sb22S42
TeTellurium
Teⓘ PetziteAg3AuTe2
BaBarium
Baⓘ BaryteBaSO4
AuGold
Auⓘ Native Gold var. Electrum(Au,Ag)
Auⓘ Native GoldAu
Auⓘ PetziteAg3AuTe2
PbLead
Pbⓘ AndoriteAgPbSb3S6
Pbⓘ ZinkenitePb9Sb22S42

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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

 
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: October 22, 2026 13:33:01 Page updated: July 23, 2026 19:48:58
Go to top of page