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

ⓘ Rhyolite

Detailed Mineral List:

ⓘ Alunite

Formula: KAl₃(SO₄)₂(OH)₆

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Baryte

Formula: BaSO₄

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Diaspore

Formula: AlO(OH)

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Dickite

Formula: Al₂(Si₂O₅)(OH)₄

References:

Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.

ⓘ Goethite

Formula: Fe³⁺O(OH)

References:

Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.

ⓘ Jarosite

Formula: KFe³⁺₃(SO₄)₂(OH)₆

References:

Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.

ⓘ Kaolinite

Formula: Al₂(Si₂O₅)(OH)₄

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Muscovite var. Illite

Formula: K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Muscovite var. Sericite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.

ⓘ Natrojarosite

Formula: NaFe₃(SO₄)₂(OH)₆

References:

Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.

ⓘ Phosphosiderite

Formula: FePO₄ · 2H₂O

References:

Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.

ⓘ Pyrophyllite

Formula: Al₂Si₄O₁₀(OH)₂

References:

Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.

ⓘ Quartz

Formula: SiO₂

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Strengite

Formula: FePO₄ · 2H₂O

References:

Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.

ⓘ 'Tourmaline'

Formula: AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z

References:

Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.

ⓘ Zunyite

Formula: Al₁₃Si₅O₂₀(OH,F)₁₈Cl

References:

Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	Goethite	4.00.	Fe³⁺O(OH)
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	Diaspore	4.FD.10	AlO(OH)
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Baryte	7.AD.35	BaSO₄
ⓘ	Alunite	7.BC.10	KAl₃(SO₄)₂(OH)₆
ⓘ	Jarosite	7.BC.10	KFe³⁺₃(SO₄)₂(OH)₆
ⓘ	Natrojarosite	7.BC.10	NaFe₃(SO₄)₂(OH)₆
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Phosphosiderite	8.CD.05	FePO₄ · 2H₂O
ⓘ	Strengite	8.CD.10	FePO₄ · 2H₂O
Group 9 - Silicates
ⓘ	Zunyite	9.BJ.55	Al₁₃Si₅O₂₀(OH,F)₁₈Cl
ⓘ	Pyrophyllite	9.EC.10	Al₂Si₄O₁₀(OH)₂
ⓘ	Muscovite var. Illite	9.EC.15	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
ⓘ		9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	var. Sericite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Dickite	9.ED.05	Al₂(Si₂O₅)(OH)₄
ⓘ	Kaolinite	9.ED.05	Al₂(Si₂O₅)(OH)₄
Unclassified
ⓘ	'Tourmaline'	-	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Alunite	KAl₃(SO₄)₂(OH)₆
H	ⓘ Diaspore	AlO(OH)
H	ⓘ Dickite	Al₂(Si₂O₅)(OH)₄
H	ⓘ Goethite	Fe³⁺O(OH)
H	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
H	ⓘ Jarosite	KFe₃³⁺(SO₄)₂(OH)₆
H	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Natrojarosite	NaFe₃(SO₄)₂(OH)₆
H	ⓘ Phosphosiderite	FePO₄ · 2H₂O
H	ⓘ Pyrophyllite	Al₂Si₄O₁₀(OH)₂
H	ⓘ Strengite	FePO₄ · 2H₂O
H	ⓘ Zunyite	Al₁₃Si₅O₂₀(OH,F)₁₈Cl
H	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
B	Boron
B	ⓘ Tourmaline	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
O	Oxygen
O	ⓘ Alunite	KAl₃(SO₄)₂(OH)₆
O	ⓘ Baryte	BaSO₄
O	ⓘ Diaspore	AlO(OH)
O	ⓘ Dickite	Al₂(Si₂O₅)(OH)₄
O	ⓘ Goethite	Fe³⁺O(OH)
O	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
O	ⓘ Jarosite	KFe₃³⁺(SO₄)₂(OH)₆
O	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Natrojarosite	NaFe₃(SO₄)₂(OH)₆
O	ⓘ Phosphosiderite	FePO₄ · 2H₂O
O	ⓘ Pyrophyllite	Al₂Si₄O₁₀(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Strengite	FePO₄ · 2H₂O
O	ⓘ Tourmaline	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
O	ⓘ Zunyite	Al₁₃Si₅O₂₀(OH,F)₁₈Cl
O	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
F	Fluorine
F	ⓘ Zunyite	Al₁₃Si₅O₂₀(OH,F)₁₈Cl
Na	Sodium
Na	ⓘ Natrojarosite	NaFe₃(SO₄)₂(OH)₆
Al	Aluminium
Al	ⓘ Alunite	KAl₃(SO₄)₂(OH)₆
Al	ⓘ Diaspore	AlO(OH)
Al	ⓘ Dickite	Al₂(Si₂O₅)(OH)₄
Al	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
Al	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Pyrophyllite	Al₂Si₄O₁₀(OH)₂
Al	ⓘ Zunyite	Al₁₃Si₅O₂₀(OH,F)₁₈Cl
Al	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	Silicon
Si	ⓘ Dickite	Al₂(Si₂O₅)(OH)₄
Si	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
Si	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Pyrophyllite	Al₂Si₄O₁₀(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Zunyite	Al₁₃Si₅O₂₀(OH,F)₁₈Cl
Si	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
P	Phosphorus
P	ⓘ Phosphosiderite	FePO₄ · 2H₂O
P	ⓘ Strengite	FePO₄ · 2H₂O
S	Sulfur
S	ⓘ Alunite	KAl₃(SO₄)₂(OH)₆
S	ⓘ Baryte	BaSO₄
S	ⓘ Jarosite	KFe₃³⁺(SO₄)₂(OH)₆
S	ⓘ Natrojarosite	NaFe₃(SO₄)₂(OH)₆
Cl	Chlorine
Cl	ⓘ Zunyite	Al₁₃Si₅O₂₀(OH,F)₁₈Cl
K	Potassium
K	ⓘ Alunite	KAl₃(SO₄)₂(OH)₆
K	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
K	ⓘ Jarosite	KFe₃³⁺(SO₄)₂(OH)₆
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Fe	Iron
Fe	ⓘ Goethite	Fe³⁺O(OH)
Fe	ⓘ Jarosite	KFe₃³⁺(SO₄)₂(OH)₆
Fe	ⓘ Natrojarosite	NaFe₃(SO₄)₂(OH)₆
Fe	ⓘ Phosphosiderite	FePO₄ · 2H₂O
Fe	ⓘ Strengite	FePO₄ · 2H₂O
Ba	Barium
Ba	ⓘ Baryte	BaSO₄

Other Regions, Features and Areas containing this locality

North AmericaContinent

Rocky MountainsMountain Range

North America PlateTectonic Plate

Great Plains DomainDomain
Southern Rocky MountainsOrogenic Belt

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