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Mount Robinson Deposit (Cowan Knoll), Rosita Mining District, Custer County, Colorado, USAi
Regional Level Types
Mount Robinson Deposit (Cowan Knoll)Deposit
Rosita Mining DistrictMining District
Custer CountyCounty
ColoradoState
USACountry

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Latitude & Longitude (WGS84):
38° 6' 52'' North , 105° 20' 32'' West
Latitude & Longitude (decimal):
38.11444,-105.34222
GeoHash:
G#: 9wv0ffs0s
GRN:
N26W60
Type:
Deposit
KΓΆppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Silver Cliff591 (2017)9.4km
Westcliffe577 (2017)11.0km
Coal Creek341 (2017)32.2km
Rockvale498 (2017)32.4km
Beulah Valley556 (2011)33.2km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Canon City Geology ClubCanon City, Colorado37km
Mindat Locality ID:
112222
Long-form identifier:
mindat:1:2:112222:3
GUID (UUID V4):
31f3f6ed-ede9-485e-b595-d39b165d3573


REF:Deposit:: SHARP, W.N., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAP I-1081, 1:24,000.
Deposit:: MINOBRAS
Analytical Data:: SRC.REF: THOENEN, J. R., 1941 , USBM R. I. 3561 , P. 13
Deposit:: CROSS, C. W., 1891 , ON ALUNITE AND DIASPORE FROM THE ROSITA HILLS, COLORADO: AM. JOUR. SCI., 3RD SER., V. 41 , NO. 246 , P. 466 - 475 .
Deposit:: CROSS, C. W., 1896 ,
Commodities (Major) - Aluminum
Development Status: Past Producer
Structure: Rosita Caldera, Wet Mountains, Volcanic Vent
Host Rock: Rhyolite
Tectonic Structure: Central Cordillera (Southern Rocky Mtns)

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


14 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:

β“˜ Alunite
Formula: KAl3(SO4)2(OH)6
β“˜ Baryte
Formula: BaSO4
β“˜ Diaspore
Formula: AlO(OH)
β“˜ Dickite
Formula: Al2(Si2O5)(OH)4
β“˜ Goethite
Formula: Ξ±-Fe3+O(OH)
β“˜ Jarosite
Formula: KFe3+3(SO4)2(OH)6
β“˜ Kaolinite
Formula: Al2(Si2O5)(OH)4
β“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Muscovite var. Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
β“˜ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Natrojarosite
Formula: NaFe3(SO4)2(OH)6
β“˜ Phosphosiderite
Formula: FePO4 · 2H2O
β“˜ Pyrophyllite
Formula: Al2Si4O10(OH)2
β“˜ Quartz
Formula: SiO2
β“˜ Strengite
Formula: FePO4 · 2H2O
β“˜ 'Tourmaline'
Formula: AD3G6 (T6O18)(BO3)3X3Z
β“˜ Zunyite
Formula: Al13Si5O20(OH,F)18Cl

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
β“˜Goethite4.00.Ξ±-Fe3+O(OH)
β“˜Quartz4.DA.05SiO2
β“˜Diaspore4.FD.10AlO(OH)
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Baryte7.AD.35BaSO4
β“˜Alunite7.BC.10KAl3(SO4)2(OH)6
β“˜Jarosite7.BC.10KFe3+3(SO4)2(OH)6
β“˜Natrojarosite7.BC.10NaFe3(SO4)2(OH)6
Group 8 - Phosphates, Arsenates and Vanadates
β“˜Phosphosiderite8.CD.05FePO4 Β· 2H2O
β“˜Strengite8.CD.10FePO4 Β· 2H2O
Group 9 - Silicates
β“˜Zunyite9.BJ.55Al13Si5O20(OH,F)18Cl
β“˜Pyrophyllite9.EC.10Al2Si4O10(OH)2
β“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜var. Illite9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
β“˜var. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜Kaolinite9.ED.05Al2(Si2O5)(OH)4
β“˜Dickite9.ED.05Al2(Si2O5)(OH)4
Unclassified
β“˜'Tourmaline'-AD3G6 (T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
Hβ“˜ AluniteKAl3(SO4)2(OH)6
Hβ“˜ DiasporeAlO(OH)
Hβ“˜ DickiteAl2(Si2O5)(OH)4
Hβ“˜ GoethiteΞ±-Fe3+O(OH)
Hβ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Hβ“˜ JarositeKFe33+(SO4)2(OH)6
Hβ“˜ KaoliniteAl2(Si2O5)(OH)4
Hβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Hβ“˜ NatrojarositeNaFe3(SO4)2(OH)6
Hβ“˜ PhosphosideriteFePO4 · 2H2O
Hβ“˜ PyrophylliteAl2Si4O10(OH)2
Hβ“˜ StrengiteFePO4 · 2H2O
Hβ“˜ ZunyiteAl13Si5O20(OH,F)18Cl
Hβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
BBoron
Bβ“˜ TourmalineAD3G6 (T6O18)(BO3)3X3Z
OOxygen
Oβ“˜ AluniteKAl3(SO4)2(OH)6
Oβ“˜ BaryteBaSO4
Oβ“˜ DiasporeAlO(OH)
Oβ“˜ DickiteAl2(Si2O5)(OH)4
Oβ“˜ GoethiteΞ±-Fe3+O(OH)
Oβ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Oβ“˜ JarositeKFe33+(SO4)2(OH)6
Oβ“˜ KaoliniteAl2(Si2O5)(OH)4
Oβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oβ“˜ NatrojarositeNaFe3(SO4)2(OH)6
Oβ“˜ PhosphosideriteFePO4 · 2H2O
Oβ“˜ PyrophylliteAl2Si4O10(OH)2
Oβ“˜ QuartzSiO2
Oβ“˜ StrengiteFePO4 · 2H2O
Oβ“˜ TourmalineAD3G6 (T6O18)(BO3)3X3Z
Oβ“˜ ZunyiteAl13Si5O20(OH,F)18Cl
Oβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
FFluorine
Fβ“˜ ZunyiteAl13Si5O20(OH,F)18Cl
NaSodium
Naβ“˜ NatrojarositeNaFe3(SO4)2(OH)6
AlAluminium
Alβ“˜ AluniteKAl3(SO4)2(OH)6
Alβ“˜ DiasporeAlO(OH)
Alβ“˜ DickiteAl2(Si2O5)(OH)4
Alβ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Alβ“˜ KaoliniteAl2(Si2O5)(OH)4
Alβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Alβ“˜ PyrophylliteAl2Si4O10(OH)2
Alβ“˜ ZunyiteAl13Si5O20(OH,F)18Cl
Alβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Siβ“˜ DickiteAl2(Si2O5)(OH)4
Siβ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Siβ“˜ KaoliniteAl2(Si2O5)(OH)4
Siβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siβ“˜ PyrophylliteAl2Si4O10(OH)2
Siβ“˜ QuartzSiO2
Siβ“˜ ZunyiteAl13Si5O20(OH,F)18Cl
Siβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
PPhosphorus
Pβ“˜ PhosphosideriteFePO4 · 2H2O
Pβ“˜ StrengiteFePO4 · 2H2O
SSulfur
Sβ“˜ AluniteKAl3(SO4)2(OH)6
Sβ“˜ BaryteBaSO4
Sβ“˜ JarositeKFe33+(SO4)2(OH)6
Sβ“˜ NatrojarositeNaFe3(SO4)2(OH)6
ClChlorine
Clβ“˜ ZunyiteAl13Si5O20(OH,F)18Cl
KPotassium
Kβ“˜ AluniteKAl3(SO4)2(OH)6
Kβ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Kβ“˜ JarositeKFe33+(SO4)2(OH)6
Kβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Kβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
FeIron
Feβ“˜ GoethiteΞ±-Fe3+O(OH)
Feβ“˜ JarositeKFe33+(SO4)2(OH)6
Feβ“˜ NatrojarositeNaFe3(SO4)2(OH)6
Feβ“˜ PhosphosideriteFePO4 · 2H2O
Feβ“˜ StrengiteFePO4 · 2H2O
BaBarium
Baβ“˜ BaryteBaSO4

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