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Twenty-Six Shafts, Rosita Mining District, Custer County, Colorado, USAi
Regional Level Types
Twenty-Six ShaftsGroup of Shafts
Rosita Mining DistrictMining District
Custer CountyCounty
ColoradoState
USACountry

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Latitude & Longitude (WGS84):
38° 6' 45'' North , 105° 19' 58'' West
Latitude & Longitude (decimal):
38.11250,-105.33278
GeoHash:
G#: 9wv0g45j2
GRN:
N26W60
Type:
Group of Shafts
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Silver Cliff591 (2017)10.3km
Westcliffe577 (2017)11.9km
Coal Creek341 (2017)32.0km
Rockvale498 (2017)32.2km
Beulah Valley556 (2011)32.4km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Canon City Geology ClubCanon City, Colorado37km
Mindat Locality ID:
112294
Long-form identifier:
mindat:1:2:112294:0
GUID (UUID V4):
0


REF:Deposit:: CROSS, WHITMAN, 1896, GEOLOGY OF SILVER CLIFF AND THE ROSITA HILLS, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 263-403
Deposit:: EMMONS, S.F., 1896, THE MINES OF CUSTER COUNTY, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 405-472.
Deposit:: SHA
Commodities (Major) - Silver; (Minor) - Lead, Copper
Development Status: Past Producer
Host Rock Unit: Silver Cliff Rhyolite Unit 2
Structure: Twenty-Six Fault, Striking East-West, Rosita Volcanic Center, Wet Mtns
Host Rock: Andesite, Trachyte
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


9 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

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘAcanthite2.BA.35Ag2S
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘGalena2.CD.10PbS
ⓘPyrite2.EB.05aFeS2
ⓘAikinite2.HB.05aPbCuBiS3
ⓘCuprobismutite2.JA.10aCu8AgBi13S24
ⓘMatildite2.JA.20AgBiS2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4

List of minerals for each chemical element

CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ BaryteBaSO4
Oⓘ CalciteCaCO3
SSulfur
Sⓘ AcanthiteAg2S
Sⓘ AikinitePbCuBiS3
Sⓘ BaryteBaSO4
Sⓘ ChalcopyriteCuFeS2
Sⓘ CuprobismutiteCu8AgBi13S24
Sⓘ GalenaPbS
Sⓘ MatilditeAgBiS2
Sⓘ PyriteFeS2
CaCalcium
Caⓘ CalciteCaCO3
FeIron
Feⓘ ChalcopyriteCuFeS2
Feⓘ PyriteFeS2
CuCopper
Cuⓘ AikinitePbCuBiS3
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ CuprobismutiteCu8AgBi13S24
AgSilver
Agⓘ AcanthiteAg2S
Agⓘ CuprobismutiteCu8AgBi13S24
Agⓘ MatilditeAgBiS2
BaBarium
Baⓘ BaryteBaSO4
PbLead
Pbⓘ AikinitePbCuBiS3
Pbⓘ GalenaPbS
BiBismuth
Biⓘ AikinitePbCuBiS3
Biⓘ CuprobismutiteCu8AgBi13S24
Biⓘ MatilditeAgBiS2

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.
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