Donate now to keep mindat.org alive!Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on Mindat
What is a mineral?The most common minerals on earthMineral PhotographyThe Elements and their MineralsGeological TimeMineral Evolution
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA

This page kindly sponsored by Tom Loomis
 
Latitude & Longitude (WGS84): 43° 42' 56'' North , 103° 40' 9'' West
Latitude & Longitude (decimal): 43.71556,-103.66944
Köppen climate type:Dfb : Warm-summer humid continental climate


A former Be occurrence/mine located just SW of the center of Sec. 8, T3S, R4E, about 8.5 km SW of Custer.

Mineralization is in the primary and secondary phosphate-bearing Tip Top granite pegmatite body.

Note: Many early reported phosphate species from this locality have been re-identified, particularly regarding manganese, iron, or magnesium end-members. Old references may be at variance with modern nomenclature. Both Campbell, T.J. and Roberts, W.L. (1986) and Loomis & Campbell (2002) are definitive statements as to species identification.

Workings include surface openings comprised of a large open-cast mine pit.


Mineral List

Albite

Alluaudite

Almandine

Amblygonite

Arseniosiderite

Arsenopyrite

Autunite

Barbosalite

Beraunite

Bermanite

Beryl

'Biotite'

Bismuth

Bobdownsite

Cassiterite

Childrenite

Collinsite

'Columbite-Tantalite'

Crandallite

Cyrilovite

Diadochite

Dufrénite

Ehrleite (TL)

Elbaite

Englishite

Eosphorite

Fairfieldite

'Feldspar Group'

'var: Perthite'

Ferrisicklerite

Fluorapatite

Fransoletite (TL)

Frondelite

Galena

Goethite

Gordonite

Goyazite

Greifensteinite

Heterosite

Hopeite

Hureaulite

Hurlbutite

Hydroxylapatite

var: Carbonate-rich Hydroxylapatite

Hydroxylherderite

'Jahnsite'

'Jahnsite-(CaMgMg)'

Jahnsite-(CaMnFe) ?

Jahnsite-(CaMnMg) (TL)

Jahnsite-(NaFeMg) (TL)

'Jahnsite-(NaMnMg)'

Kidwellite

Kingsmountite

Kryzhanovskite

Laueite

Leucophosphite

Lithiophilite

Lithiophosphate

Ludlamite

Marcasite

Messelite

Meta-autunite

Metaswitzerite

Microcline

Mitridatite

'Monazite'

Montebrasite

Montgomeryite

Muscovite

Pahasapaite (TL)

Parafransoletite (TL)

Pararobertsite (TL)

Parascholzite

Perloffite

Pharmacosiderite

Phosphoferrite

Purpurite

Pyrite

Pyrolusite

Quartz

Robertsite (TL)

Rockbridgeite

Roscherite

Scholzite

Schorl

Scorodite

Segelerite (TL)

Sicklerite

Siderite

Spessartine

Sphalerite

Stewartite

Strengite

Strunzite

Switzerite

Tavorite

Tinsleyite (TL)

Tiptopite (TL)

Todorokite

Triphylite

Triploidite

Uraninite

Ushkovite

Vivianite

Wardite

Whiteite-(CaMnMg) (TL)

Whitlockite

Whitmoreite

Xanthoxenite

Zircon


97 valid minerals. 12 (TL) - type locality of valid minerals. 4 erroneous literature entries.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Paleoproterozoic
1600 - 2500 Ma



ID: 2968999
Upper Metagraywacke

Age: Proterozoic (1600 - 2500 Ma)

Description: Light- to dark-gray, quartz-mica-feldspar schist, quartz-mica schist, staurolite and garnet-rich schist, metaconglomerate, calc-silicate gneiss, and cummingtonite-quartz schist. Thickness up to 14,000 ft (4,267 m).

Lithology: Major:{schist,metaconglomerate,gneiss}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Paleoproterozoic
1600 - 2500 Ma



ID: 2476896
Harney Peak Granite

Age: Proterozoic (1600 - 2500 Ma)

Description: Layered granite, pegmatitic granite, and pegmatite. Leucocratic, peraluminous, plagioclase-microcline-quartz-muscovite S-type granite. Tourmaline and biotite common, but biotite mainly in inner part of central mass. Central mass consists of hundreds of intrusions. More than 24,000 separate bodies of pegmatite and granite are known between the central mass and the line defining the outer limit of pegmatite and granite bodies. Several hundred zoned pegmatites in a peripheral zone contain deposits of feldspar, mica, beryl, and other rare-element minerals. Emplacement age of 1,715 ± 3 Ma for the main granite based on concordant U-Pb date for monazite (Redden and others, 1990), but the emplacement of some pegmatite bodies may have continued for ~10 million years.

Reference: Redden, J.A., E. DeWitt. Maps Showing Geology, Structure, and Geophysics of the Central Black Hills, South Dakota. U.S. Geological Survey Scientific Investigations Map 2777. [73]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



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

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Dunn, P.J., Roberts, W.L., Campbell, T.J., and Leavens, P.B. (1983) Red Montgomeryite and associated minerals from the Tip Top Pegmatite with notes on kingsmountite and calcioferrite. Mineralogical Record: 14 (3): 195-197.
Joel D. Grice, Donald R. Peacor, George W. Robinson, Jerry van Velthuizen, Willard L. Roberts, Thomas J. Campbell, and Pete J. Dunn (1985) Tiptopite (Li,K,Na,Ca,)8Be6(PO4)6(OH)4, a new mineral species from the Black Hills, South Dakota. The Canadian Mineralogist: 23: 43–46.
Rocks & Minerals (1985) 60: 117.
Campbell, T.J. and Roberts, W.L. (1986) Phosphate minerals from the Tip Top mine, Black Hills, South Dakota. Mineralogical Record: 17: 237-254.
Canadian Mineralogist (1989) 27: 699-702.
Moore, P.B. (2000) Analyses of Primary Phosphates from Pegmatites in Maine and Other Localities, in V. T. King (editor), Mineralogy of Maine. Mining History, Gems, and Geology. Maine Geological Survey, Augusta, Maine: 333-336.
Loomis, Thomas A. and Thomas J. Campbell (2002) The Tip Top pegmatite, A Historical Review and Mineralogical Update. MATRIX: 10(3): 138-146.
Tait, K.T., Barkley, M.C., Thompson, R.M., Origlieri, M.J., Evans, S.H., Prewitt, C.T., and Yang, H. (2011) Bobdownsite, a new mineral species from Big Fish River, Yukon, Canada, and its structural relationship with whitlockite-type compounds. Canadian Mineralogist: 49: 1065-1078.

External Links


Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2018, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: January 18, 2018 04:19:46 Page generated: January 18, 2018 02:11:50
Go to top of page