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Bob Ingersoll Mine (Ingersoll Mine; Ben Butler Mine; Horace Greely Mine), Keystone, Keystone District, Pennington Co., South Dakota, USA

Ref.: Dana 7:I:613; Rocks & Min.:10:147 & 60:112,116; Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 33 (Table A-1).

A mica-lithium-feldspar-beryllium-tin-niobium-tantalum mine located in the NE¼ NW¼ sec. 6, T.2S., R.6E.

Mineralization is comprised of 5 zoned pegmatite dikes in quartz-mica schist.

Workings include open cuts, pits and underground development.





Map Reference: 43°54'21"N , 103°26'46"W

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Mineral List:
Albite
var: Cleavelandite

Almandine
Amblygonite
Apatite-(CaF)
Apatite-(CaOH)
var: Carbonate-rich Apatite-(CaOH)

Augelite
Autunite
Becquerelite
Beryl
Bismuth
Cassiterite
Columbite
Columbite-(Fe)
Elbaite
Fairfieldite
Fourmarierite
Greenockite
Heterosite
Ilmenite
'Jahnsite'
Kasolite
Lepidolite
Löllingite
Microcline
Microlite
Montebrasite
Muscovite
Pharmacosiderite
Quartz
Schorl
Sicklerite
Siderite
Sphalerite
Spodumene
Staurolite
Tantalite
'Tourmaline
var: Rubellite'

'var: Verdelite'
Triphylite
Triplite ?
Uraninite
Uranophane
Vandendriesscheite
Zircon


44 entries listed. 36 valid minerals.

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Copyright © Jolyon Ralph and Ida Chau 1993-2009. Jobs in South Dakota, USA Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 22nd Nov 2009 16:10:38