Hardesty Homestead Mine, Keystone Mining District, Pennington County, South Dakota, USA i
Regional Level Types
Hardesty Homestead Mine Mine
Keystone Mining District Mining District
Pennington County County
South Dakota State
USA Country

Ref.: Rocks & Min.: 75(3): 156-169; Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 32 (Table A-1).

A pegmatite mine located in the NE¼ sec. 36, T.1S., R.5E., 4 miles northwest of Keystone.

Mineralization is an irregular, zoned pegmatite body in biotite-garnet-quartz schist.

Workings include 4 open cuts and a 10 foot deep shaft.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

11 valid minerals.

Detailed Mineral List:

ⓘ Albite

Formula: Na(AlSi₃O₈)

References:

Smith, Arthur E., Fritzsch, Eric (2000) SOUTH DAKOTA. Rocks & Minerals, 75 (3) 156-169 doi:10.1080/00357520009605635

ⓘ Amblygonite

Formula: LiAl(PO₄)F

References:

Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 32 (Table A-1).

Smith, Arthur E., Fritzsch, Eric (2000) SOUTH DAKOTA. Rocks & Minerals, 75 (3) 156-169 doi:10.1080/00357520009605635

ⓘ Beryl

Formula: Be₃Al₂(Si₆O₁₈)

References:

Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 32 (Table A-1).

Smith, Arthur E., Fritzsch, Eric (2000) SOUTH DAKOTA. Rocks & Minerals, 75 (3) 156-169 doi:10.1080/00357520009605635

ⓘ Cassiterite

Formula: SnO₂

References:

Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 32 (Table A-1).

ⓘ 'Columbite-(Fe)-Columbite-(Mn) Series'

References:

Smith, Arthur E., Fritzsch, Eric (2000) SOUTH DAKOTA. Rocks & Minerals, 75 (3) 156-169 doi:10.1080/00357520009605635

ⓘ Graphite

Formula: C

References:

Smith, Arthur E., Fritzsch, Eric (2000) SOUTH DAKOTA. Rocks & Minerals, 75 (3) 156-169 doi:10.1080/00357520009605635

ⓘ Microcline

Formula: K(AlSi₃O₈)

References:

Smith, Arthur E., Fritzsch, Eric (2000) SOUTH DAKOTA. Rocks & Minerals, 75 (3) 156-169 doi:10.1080/00357520009605635

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

Smith, Arthur E., Fritzsch, Eric (2000) SOUTH DAKOTA. Rocks & Minerals, 75 (3) 156-169 doi:10.1080/00357520009605635

ⓘ Quartz

Formula: SiO₂

References:

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

ⓘ Rhodochrosite

Formula: MnCO₃

References:

Smith, Arthur E., Fritzsch, Eric (2000) SOUTH DAKOTA. Rocks & Minerals, 75 (3) 156-169 doi:10.1080/00357520009605635

ⓘ Spodumene

Formula: LiAlSi₂O₆

References:

Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 32 (Table A-1).

Smith, Arthur E., Fritzsch, Eric (2000) SOUTH DAKOTA. Rocks & Minerals, 75 (3) 156-169 doi:10.1080/00357520009605635

ⓘ 'Tantalite'

Formula: (Mn,Fe)(Ta,Nb)₂O₆

References:

Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 32 (Table A-1).

Smith, Arthur E., Fritzsch, Eric (2000) SOUTH DAKOTA. Rocks & Minerals, 75 (3) 156-169 doi:10.1080/00357520009605635

ⓘ 'Tapiolite'

Formula: (Fe,Mn)(Ta,Nb)₂O₆

References:

Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 32 (Table A-1).

Smith, Arthur E., Fritzsch, Eric (2000) SOUTH DAKOTA. Rocks & Minerals, 75 (3) 156-169 doi:10.1080/00357520009605635

ⓘ Topaz

Formula: Al₂(SiO₄)(F,OH)₂

References:

Smith, Arthur E., Fritzsch, Eric (2000) SOUTH DAKOTA. Rocks & Minerals, 75 (3) 156-169 doi:10.1080/00357520009605635

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Graphite	1.CB.05a	C
Group 4 - Oxides and Hydroxides
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	Cassiterite	4.DB.05	SnO₂
Group 5 - Nitrates and Carbonates
ⓘ	Rhodochrosite	5.AB.05	MnCO₃
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Amblygonite	8.BB.05	LiAl(PO₄)F
Group 9 - Silicates
ⓘ	Topaz	9.AF.35	Al₂(SiO₄)(F,OH)₂
ⓘ	Beryl	9.CJ.05	Be₃Al₂(Si₆O₁₈)
ⓘ	Spodumene	9.DA.30	LiAlSi₂O₆
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Microcline	9.FA.30	K(AlSi₃O₈)
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
Unclassified
ⓘ	'Tantalite'	-	(Mn,Fe)(Ta,Nb)₂O₆
ⓘ	'Tapiolite'	-	(Fe,Mn)(Ta,Nb)₂O₆
ⓘ	'Columbite-(Fe)-Columbite-(Mn) Series'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Topaz	Al₂(SiO₄)(F,OH)₂
Li	Lithium
Li	ⓘ Amblygonite	LiAl(PO₄)F
Li	ⓘ Spodumene	LiAlSi₂O₆
Be	Beryllium
Be	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
C	Carbon
C	ⓘ Graphite	C
C	ⓘ Rhodochrosite	MnCO₃
O	Oxygen
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Amblygonite	LiAl(PO₄)F
O	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
O	ⓘ Cassiterite	SnO₂
O	ⓘ Microcline	K(AlSi₃O₈)
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Rhodochrosite	MnCO₃
O	ⓘ Spodumene	LiAlSi₂O₆
O	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
O	ⓘ Tapiolite	(Fe,Mn)(Ta,Nb)₂O₆
O	ⓘ Topaz	Al₂(SiO₄)(F,OH)₂
F	Fluorine
F	ⓘ Amblygonite	LiAl(PO₄)F
F	ⓘ Topaz	Al₂(SiO₄)(F,OH)₂
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Amblygonite	LiAl(PO₄)F
Al	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
Al	ⓘ Microcline	K(AlSi₃O₈)
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Spodumene	LiAlSi₂O₆
Al	ⓘ Topaz	Al₂(SiO₄)(F,OH)₂
Si	Silicon
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
Si	ⓘ Microcline	K(AlSi₃O₈)
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Spodumene	LiAlSi₂O₆
Si	ⓘ Topaz	Al₂(SiO₄)(F,OH)₂
P	Phosphorus
P	ⓘ Amblygonite	LiAl(PO₄)F
K	Potassium
K	ⓘ Microcline	K(AlSi₃O₈)
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Mn	Manganese
Mn	ⓘ Rhodochrosite	MnCO₃
Mn	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
Mn	ⓘ Tapiolite	(Fe,Mn)(Ta,Nb)₂O₆
Fe	Iron
Fe	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
Fe	ⓘ Tapiolite	(Fe,Mn)(Ta,Nb)₂O₆
Nb	Niobium
Nb	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
Nb	ⓘ Tapiolite	(Fe,Mn)(Ta,Nb)₂O₆
Sn	Tin
Sn	ⓘ Cassiterite	SnO₂
Ta	Tantalum
Ta	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
Ta	ⓘ Tapiolite	(Fe,Mn)(Ta,Nb)₂O₆

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate

Wyoming DomainDomain

USA

Black HillsMountain Range
South Dakota
- Custer County
  - Custer State ParkState Park

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