Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Unorganized District, Custer Co., South Dakota, USA

mindat Locality ID: 236544
mindat URL: http://www.mindat.org/loc-236544.html

Tectonic Settings:

Total number of sublocalities beneath "Unorganized District, Custer Co., South Dakota, USA": 45
Total number of bottom-level sublocalities: 45

Number of Child Localities: 45
Child Localities:
Argyle Fuller's Earth Deposit
Bebington Group
Beryl Feldspar Mine
Black Hills Porcelain Clay And Marble
C & N Group
Case Group
Cheyenne Lode Prospect
Corky Claim
Cuyahoga Mine
Echo Gold Mine
Edgewater Claim
Eldorado Custer County (Old Bill Group)
Fern Cliff Prospect
Flora Lode Occurrence
Formoso Occurrence
Gold Fish Group
Gold Hill Claim (North Star; Hard Scrabble; Golden Erie; Owl And Straussburg Claims; Opulent)
Gold Reserve Mine (Saginaw Mine)
Golden Crown Mine (Leroy Mine)
Grand Junction And Hartford Group
Grant Mine (Wild Rose Group)
Green Dale Occurrence
Jack Pot Group
Josie Lode Mine
Jumbo Lode Occurrence
Kirka Claim (Downing Claim)
Lake Mica Prospect (Lakeside)
Luck Bird Lode (Lucky Bird Mine)
Maryland Lode (Olds Lode)
May Group (May Gold Mine)
Michaud Prospect
Mineral Hill Lode (Oneota Lode)
Minnie May Group (Minnie May Gold Mine)
Newark Group
Noble Mica Occurrence
Occidental Lode Occurrence
Oneonta Mine
Penobscot Gold Mine
Pine Tree Gold Mine
Put Lode
Red Spar Mine
Sky Lode Occurrence
Turk Group
Wabash Mine
Western Star Group

Latitude: 43°46'18"N
Longitude: 103°37'27"W
Decimal Degree (lat, lon): 43.771666666667,-103.62416666667

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Amphibole	Arsenopyrite	Beryl	Clay	Copper	Corundum	Feldspar	Kaolinite	Mica	Nickeline
None	Not in a structural group	Olivine	Pyrite	Pyroxene	Quartz	Rocksalt	Rutile	Scheelite	Sphalerite
Spinel	Staurolite

Albite ()*	Amblygonite ()*	Arsenopyrite ()*	Beryl ()*	Cassiterite ()*
Cummingtonite ()*	Galena ()*	Gold ()*	Graphite ()*	Grunerite ()*
Hematite ()*	Kaolinite ()*	Lithiophilite ()*	Magnetite ()*	Microcline ()*
Muscovite ()*	Pyrite ()*	Pyrolusite ()*	Pyrrhotite ()*	Quartz ()*
Scheelite ()*	Sillimanite ()*	Silver ()*	Sphalerite ()*	Spodumene ()*
Staurolite ()*

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Ag Al As Au Be C Ca F Fe H K Li Mg Mn Na O P Pb S Si Sn W Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amphibole Arsenopyrite Beryl Clay Copper Corundum Feldspar Kaolinite Mica Nickeline
None Not in a structural group Olivine Pyrite Pyroxene Quartz Rocksalt Rutile Scheelite Sphalerite
Spinel Staurolite

26 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	5	265101,265117,265124,265133,265134	8803
Amblygonite ()*	None	LiAl(PO₄)F	1	265101	244
Arsenopyrite ()*	Arsenopyrite	FeAsS	1	265113	9052
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	9	265096,265100,265101,265117,265118,265124,265133,265134,265135	4286
Cassiterite ()*	Rutile	SnO₂	3	265102,265107,265129	5171
Cummingtonite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	1	265127	327
Galena ()*	Rocksalt	PbS	1	265113	24243
Gold ()*	Copper	Au	14	265095,265103,265105,265109,265110,265111,265112,265113,265123,265125,265126,265127,265136,265138	30554
Graphite ()*	None	C	1	265113	2812
Grunerite ()*	Amphibole	Fe²⁺₂Fe²⁺₅Si₈O₂₂(OH)₂	1	265113	223
Hematite ()*	Corundum	Fe₂O₃	1	265098	14640
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	1	265097	5591
Lithiophilite ()*	Olivine	LiMn²⁺(PO₄)	2	265101,265134	155
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1	265113	14899
Microcline ()*	Feldspar	K(AlSi₃O₈)	2	265118,265133	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	9	265100,265101,265117,265118,265119,265120,265124,265134,265135	17380
Pyrite ()*	Pyrite	FeS₂	4	265102,265106,265111,265119	39462
Pyrolusite ()*	Rutile	MnO₂	3	265098,265099,265116	3106
Pyrrhotite ()*	Nickeline	Fe₇S₈	1	265113	9056
Quartz ()*	Quartz	SiO₂	31	265095,265100,265101,265103,265105,265106,265109,265110,265111,265112,265113,265117,265118,265119,265120,265121,265123,265124,265125,265126,265127,265128,265130,265131,265132,265133,265134,265135,265136,265137,265138	61156
Scheelite ()*	Scheelite	Ca(WO₄)	2	265104,265106	4894
Sillimanite ()*	Not in a structural group	Al₂SiO₅	1	265134	1516
Silver ()*	Copper	Ag	13	265095,265103,265105,265109,265110,265111,265112,265113,265125,265126,265127,265136,265138	5186
Sphalerite ()*	Sphalerite	ZnS	1	265113	21482
Spodumene ()*	Pyroxene	LiAlSi₂O₆	1	265135	688
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)	1	265134	978

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...