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Old Mike mine (Great Northern; Old Mike M.S.2212), Custer, Custer Mining District, Custer County, South Dakota, USA i
Regional Level Types
Old Mike mine (Great Northern; Old Mike M.S.2212) Mine
Custer City
Custer Mining District Mining District
Custer County County
South Dakota State
USA Country

Regional Level Types
Old Mike mine (Great Northern; Old Mike M.S.2212)	Mine
Custer	City
Custer Mining District	Mining District
Custer County	County
South Dakota	State
USA	Country

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Cassiterite, etc.

Old Mike mine, Custer, Custer Mining District, Custer County, South Dakota, USA

Tapiolite

Old Mike mine, Custer, Custer Mining District, Custer County, South Dakota, USA

Cassiterite, etc.

Old Mike mine, Custer, Custer Mining District, Custer County, South Dakota, USA

Tapiolite

Old Mike mine, Custer, Custer Mining District, Custer County, South Dakota, USA

Cassiterite, etc.

Old Mike mine, Custer, Custer Mining District, Custer County, South Dakota, USA

Tapiolite

Old Mike mine, Custer, Custer Mining District, Custer County, South Dakota, USA

Latitude & Longitude (WGS84):

43° 49' 6'' North , 103° 36' 59'' West

Latitude & Longitude (decimal):

G#: 9xy360uu7

Type:

Köppen climate type:

Dfb : Warm-summer humid continental climate

Nearest Settlements:

Place	Population	Distance
Custer	1,952 (2017)	5.9km
Hill City	995 (2017)	13.1km
Keystone	343 (2017)	18.0km
Pringle	109 (2017)	23.4km
Colonial Pine Hills	2,493 (2017)	32.0km

Nearest Clubs:
Local clubs are the best way to get access to collecting localities

Club	Location	Distance
Western Dakota Gem & Mineral Society	Rapid City, South Dakota	42km

Mindat Locality ID:

4109

Long-form identifier:

mindat:1:2:4109:9

GUID (UUID V4):

Granite pegmatite. Ref.: (in part): Dana 7:I:785. Located near Berne north of Custer.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

15 valid minerals. 1 (TL) - type locality of 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

ⓘ Alluaudite

Formula: (Na,Ca)Mn²⁺(Fe³⁺,Mn²⁺,Fe²⁺,Mg)₂(PO₄)₃

References:

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

ⓘ Beryl

Formula: Be₃Al₂(Si₆O₁₈)

References:

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

ⓘ Cassiterite

Formula: SnO₂

References:

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

ⓘ 'Columbite-Tantalite'

References:

Dana 7:I:785.

ⓘ Fluorapatite ?

Formula: Ca₅(PO₄)₃F

References:

Jesse Corneliusen CollectionIdentified by Jesse Corneliusen: Visual Identification

ⓘ Heterosite

Formula: (Fe³⁺,Mn³⁺)PO₄

References:

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

ⓘ Lithiophilite

Formula: LiMn²⁺PO₄

References:

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

ⓘ Lithiophilite var. Sicklerite

Formula: Li_1-x(Mn³⁺_xMn²⁺_1-x)PO₄

References:

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

ⓘ Löllingite

Formula: FeAs₂

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:

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

Description: Crystal to 41 pounds.

References:

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

ⓘ Tantalite-(Fe)

Formula: Fe²⁺Ta₂O₆

References:

Danas System of Mineralogy 7th ed

ⓘ 'Tapiolite'

Formula: (Fe,Mn)(Ta,Nb)₂O₆

References:

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

ⓘ Triphylite

Formula: LiFe²⁺PO₄

Description: Mn/Mn + Fe = 0.18

References:

King, Vandall T. (2000) Mineralogy of Maine Vol. 2 - Mining History, Gems, and Geology. Maine Geological Survey.pp.333-336

ⓘ Vivianite

Formula: Fe²⁺Fe²⁺₂(PO₄)₂ · 8H₂O

References:

Roberts, Willard Lincoln, Rapp, George Jr. (1965) Mineralogy of the Black Hills. Bulletin 18. South Dakota School of Mines and Technology

ⓘ Wyllieite (TL)

Formula: (Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO₄)₃

Type Locality:

References:

Campbell, Thomas J., Triscori, Kurt L. (1986) Type Locality Minerals of the Black Hills, South Dakota. The Mineralogical Record, 17 (5) 297-302pp.301-301

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Löllingite	2.EB.15a	FeAs₂
Group 4 - Oxides and Hydroxides
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	Cassiterite	4.DB.05	SnO₂
ⓘ	Tantalite-(Fe)	4.DB.35	Fe²⁺Ta₂O₆
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Heterosite	8.AB.10	(Fe³⁺,Mn³⁺)PO₄
ⓘ	Lithiophilite	8.AB.10	LiMn²⁺PO₄
ⓘ	var. Sicklerite	8.AB.10	Li_1-x(Mn³⁺_xMn²⁺_1-x)PO₄
ⓘ	Triphylite	8.AB.10	LiFe²⁺PO₄
ⓘ	Alluaudite	8.AC.10	(Na,Ca)Mn²⁺(Fe³⁺,Mn²⁺,Fe²⁺,Mg)₂(PO₄)₃
ⓘ	Wyllieite (TL)	8.AC.15	(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO₄)₃
ⓘ	Fluorapatite ?	8.BN.05	Ca₅(PO₄)₃F
ⓘ	Vivianite	8.CE.40	Fe²⁺Fe²⁺₂(PO₄)₂ · 8H₂O
Group 9 - Silicates
ⓘ	Beryl	9.CJ.05	Be₃Al₂(Si₆O₁₈)
ⓘ	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-Tantalite'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Vivianite	Fe²⁺Fe₂²⁺(PO₄)₂ · 8H₂O
Li	Lithium
Li	ⓘ Lithiophilite	LiMn²⁺PO₄
Li	ⓘ Lithiophilite var. Sicklerite	Li_1-x(Mn_x³⁺Mn²⁺_1-x)PO₄
Li	ⓘ Triphylite	LiFe²⁺PO₄
Be	Beryllium
Be	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
O	Oxygen
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Alluaudite	(Na,Ca)Mn²⁺(Fe³⁺,Mn²⁺,Fe²⁺,Mg)₂(PO₄)₃
O	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
O	ⓘ Cassiterite	SnO₂
O	ⓘ Tantalite-(Fe)	Fe²⁺Ta₂O₆
O	ⓘ Fluorapatite	Ca₅(PO₄)₃F
O	ⓘ Heterosite	(Fe³⁺,Mn³⁺)PO₄
O	ⓘ Lithiophilite	LiMn²⁺PO₄
O	ⓘ Microcline	K(AlSi₃O₈)
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Lithiophilite var. Sicklerite	Li_1-x(Mn_x³⁺Mn²⁺_1-x)PO₄
O	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
O	ⓘ Tapiolite	(Fe,Mn)(Ta,Nb)₂O₆
O	ⓘ Triphylite	LiFe²⁺PO₄
O	ⓘ Vivianite	Fe²⁺Fe₂²⁺(PO₄)₂ · 8H₂O
O	ⓘ Wyllieite	(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO₄)₃
F	Fluorine
F	ⓘ Fluorapatite	Ca₅(PO₄)₃F
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Na	ⓘ Alluaudite	(Na,Ca)Mn²⁺(Fe³⁺,Mn²⁺,Fe²⁺,Mg)₂(PO₄)₃
Na	ⓘ Wyllieite	(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO₄)₃
Mg	Magnesium
Mg	ⓘ Alluaudite	(Na,Ca)Mn²⁺(Fe³⁺,Mn²⁺,Fe²⁺,Mg)₂(PO₄)₃
Mg	ⓘ Wyllieite	(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO₄)₃
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
Al	ⓘ Microcline	K(AlSi₃O₈)
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Wyllieite	(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO₄)₃
Si	Silicon
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
Si	ⓘ Microcline	K(AlSi₃O₈)
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Quartz	SiO₂
P	Phosphorus
P	ⓘ Alluaudite	(Na,Ca)Mn²⁺(Fe³⁺,Mn²⁺,Fe²⁺,Mg)₂(PO₄)₃
P	ⓘ Fluorapatite	Ca₅(PO₄)₃F
P	ⓘ Heterosite	(Fe³⁺,Mn³⁺)PO₄
P	ⓘ Lithiophilite	LiMn²⁺PO₄
P	ⓘ Lithiophilite var. Sicklerite	Li_1-x(Mn_x³⁺Mn²⁺_1-x)PO₄
P	ⓘ Triphylite	LiFe²⁺PO₄
P	ⓘ Vivianite	Fe²⁺Fe₂²⁺(PO₄)₂ · 8H₂O
P	ⓘ Wyllieite	(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO₄)₃
K	Potassium
K	ⓘ Microcline	K(AlSi₃O₈)
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Alluaudite	(Na,Ca)Mn²⁺(Fe³⁺,Mn²⁺,Fe²⁺,Mg)₂(PO₄)₃
Ca	ⓘ Fluorapatite	Ca₅(PO₄)₃F
Ca	ⓘ Wyllieite	(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO₄)₃
Mn	Manganese
Mn	ⓘ Alluaudite	(Na,Ca)Mn²⁺(Fe³⁺,Mn²⁺,Fe²⁺,Mg)₂(PO₄)₃
Mn	ⓘ Heterosite	(Fe³⁺,Mn³⁺)PO₄
Mn	ⓘ Lithiophilite	LiMn²⁺PO₄
Mn	ⓘ Lithiophilite var. Sicklerite	Li_1-x(Mn_x³⁺Mn²⁺_1-x)PO₄
Mn	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
Mn	ⓘ Tapiolite	(Fe,Mn)(Ta,Nb)₂O₆
Mn	ⓘ Wyllieite	(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO₄)₃
Fe	Iron
Fe	ⓘ Alluaudite	(Na,Ca)Mn²⁺(Fe³⁺,Mn²⁺,Fe²⁺,Mg)₂(PO₄)₃
Fe	ⓘ Tantalite-(Fe)	Fe²⁺Ta₂O₆
Fe	ⓘ Heterosite	(Fe³⁺,Mn³⁺)PO₄
Fe	ⓘ Löllingite	FeAs₂
Fe	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
Fe	ⓘ Tapiolite	(Fe,Mn)(Ta,Nb)₂O₆
Fe	ⓘ Triphylite	LiFe²⁺PO₄
Fe	ⓘ Vivianite	Fe²⁺Fe₂²⁺(PO₄)₂ · 8H₂O
Fe	ⓘ Wyllieite	(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO₄)₃
As	Arsenic
As	ⓘ Löllingite	FeAs₂
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-(Fe)	Fe²⁺Ta₂O₆
Ta	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
Ta	ⓘ Tapiolite	(Fe,Mn)(Ta,Nb)₂O₆

Other Regions, Features and Areas containing this locality

North AmericaContinent

North America PlateTectonic Plate

Wyoming CratonCraton
Wyoming DomainDomain

USA

Black HillsMountain Range

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

King, Vandall T. (2000) Mineralogy of Maine Vol. 2 - Mining History, Gems, and Geology. Maine Geological Survey.pp.333-336

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