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

Delmas Mine (Sweepstakes Mine; Delmas SW Mine; Como Mine), Nevada Bunker Hill Mines, Alladin group, Railroad Mining District, Elko County, Nevada, USAi
Regional Level Types
Delmas Mine (Sweepstakes Mine; Delmas SW Mine; Como Mine)Mine
Nevada Bunker Hill MinesGroup of Mines
Alladin group- not defined -
Railroad Mining DistrictMining District
Elko CountyCounty
NevadaState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearchMineralogy
Latitude & Longitude (WGS84):
40° 31' 0'' North , 116° 0' 52'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Carlin2,302 (2017)23.2km
Elko20,279 (2017)41.0km
Spring Creek12,361 (2011)43.0km
Osino709 (2011)55.0km
Mindat Locality ID:
41511
Long-form identifier:
mindat:1:2:41511:7
GUID (UUID V4):
0


Part of the Alladin Group
Alteration: Silificion

Deposit: Tactite body at contact of granite porphyry with limestone also, some gold-bearing quartz veins. The delmas copper co., owner of several claims, developed their property by means of shallow pits and adits to explore the copper ore deposits in the tactite body which extends in a zone over 2000' long, and 125'-400' wide. Much of the early development was completed from 1906-1908. This activity resulted in the shipping of ore to the utah smelters. The sweepstakes claim is the most extensively explored. Ore shipped ran As high As 70 oz. Of silver, 10.4% copper, and 2.8% lead. The highest grade ore carries chalcocite coated sulphides ; info.src : 1 pub lit

Deposit type: Skarn Cu

Development: Early development took place 1906 to 1908, when ore was shipped to utah smelters

Geology: Some gold-bearing quartz veins occur in the granite porphyry

Ore(s): Intrusive Contact, Favorable Rocks

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


14 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Bornite
Formula: Cu5FeS4
ⓘ Chalcocite
Formula: Cu2S
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ 'Copper Stain'
ⓘ Diopside
Formula: CaMgSi2O6
ⓘ Galena
Formula: PbS
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
ⓘ 'Limonite'
ⓘ Native Copper
Formula: Cu
ⓘ Native Gold
Formula: Au
ⓘ Pyrite
Formula: FeS2
ⓘ 'Pyroxene Group'
Formula: ADSi2O6
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
ⓘ Sphalerite
Formula: ZnS
ⓘ Tenorite
Formula: CuO
ⓘ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2
ⓘ 'Wad'
ⓘ Zoisite
Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Copper1.AA.05Cu
ⓘNative Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘBornite2.BA.15Cu5FeS4
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘGalena2.CD.10PbS
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘTenorite4.AB.10CuO
ⓘQuartz4.DA.05SiO2
Group 9 - Silicates
ⓘZoisite9.BG.10(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
ⓘDiopside9.DA.15CaMgSi2O6
ⓘTremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
Unclassified
ⓘ'Limonite'-
ⓘ'Wad'-
ⓘ'Pyroxene Group'-ADSi2O6
ⓘ'Garnet Group'-X3Z2(SiO4)3
ⓘ'Copper Stain'-

List of minerals for each chemical element

HHydrogen
Hⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Hⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
OOxygen
Oⓘ DiopsideCaMgSi2O6
Oⓘ QuartzSiO2
Oⓘ TenoriteCuO
Oⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Oⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Oⓘ Pyroxene GroupADSi2O6
Oⓘ Garnet GroupX3Z2(SiO4)3
MgMagnesium
Mgⓘ DiopsideCaMgSi2O6
Mgⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
AlAluminium
Alⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
SiSilicon
Siⓘ DiopsideCaMgSi2O6
Siⓘ QuartzSiO2
Siⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Siⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Siⓘ Pyroxene GroupADSi2O6
Siⓘ Garnet GroupX3Z2(SiO4)3
SSulfur
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ ChalcociteCu2S
Sⓘ GalenaPbS
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
CaCalcium
Caⓘ DiopsideCaMgSi2O6
Caⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Caⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
FeIron
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
CuCopper
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ ChalcociteCu2S
Cuⓘ Native CopperCu
Cuⓘ TenoriteCuO
ZnZinc
Znⓘ SphaleriteZnS
AuGold
Auⓘ Native GoldAu
PbLead
Pbⓘ GalenaPbS

Other Databases

Link to USGS MRDS:10045587

Other Regions, Features and Areas containing this locality


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 14:04:42 Page updated: August 13, 2026 17:52:13
Go to top of page