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, Pennington Co., South Dakota, USA

Oldest recorded age at locality: 1700
Youngest recorded age at locality: 1700

mindat Locality ID: 277768
mindat URL: http://www.mindat.org/loc-277768.html

Tectonic Settings:

Total number of sublocalities beneath "Unorganized District, Pennington Co., South Dakota, USA": 16
Total number of bottom-level sublocalities: 16

Number of Child Localities: 16
Child Localities:
Barnes Group (Black Tom Group)
Battle Axe Group (Sunflower Group)
Black Diamond Pennington County Occurrence
Dakota Lime And Brick Company
Gap Lode Pegmatite
Gopher Lode Occurrence
Hawk Wright (Payday Group; Sunbeam)
Hills Materials Limestone Quarry
Mastiff Group
New England Prospect
Omega Group
Ottumwa Lode Occurrence
South Dakota State Cement Plant
St. Elmo Group (Western Belle Group)
Tiffel Mine
Western Feldspar Lode Occurrence

Latitude: 43°58'28"N
Longitude: 103°33'38"W
Decimal Degree (lat, lon): 43.974444444444,-103.56055555556

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.

Andalusite	Apatite	Arseniosiderite	Beryl	Chalcopyrite	Childrenite	Clay	Copper	Feldspar	Leucophosphite
Marcasite	Mica	None	Olivine	Pyrite	Pyroxene	Quartz	Rutile

Albite ()*	Andalusite ()*	Beryl ()*	Cassiterite ()*	Chalcopyrite ()*
Childrenite ()*	Copper ()*	Fluorapatite ()*	Gold ()*	Heterosite ()*
Hydroxylapatite ()*	Leucophosphite ()*	Marcasite ()*	Microcline ()*	Mitridatite ()*
Muscovite ()*	Pyrite ()*	Quartz ()*	Silver ()*	Spodumene ()*
Strengite ()*	Triphylite ()*

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 Au Be Ca Cu F Fe H K Li Na O P S Si Sn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Andalusite Apatite Arseniosiderite Beryl Chalcopyrite Childrenite Clay Copper Feldspar Leucophosphite
Marcasite Mica None Olivine Pyrite Pyroxene Quartz Rutile

22 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	1700	1700	1	266234	8803
Andalusite ()*	Andalusite	Al₂SiO₅	1700	1700	1	266232	1310
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	1700	1700	1	266239	4286
Cassiterite ()*	Rutile	SnO₂	1700	1700	2	266241,266245	5171
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1700	1700	1	266238	27198
Childrenite ()*	Childrenite	Fe²⁺Al(PO₄)(OH)₂·H₂O	1700	1700	1	266234	93
Copper ()*	Copper	Cu	1700	1700	1	266235	3846
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	1700	1700	1	266234	2740
Gold ()*	Copper	Au	1700	1700	6	266230,266231,266235,266236,266240,266243	30554
Heterosite ()*	Olivine	Fe³⁺(PO₄)	1700	1700	1	266234	204
Hydroxylapatite ()*	Apatite	Ca₅(PO₄)₃OH	1700	1700	1	266234	367
Leucophosphite ()*	Leucophosphite	KFe³⁺₂(PO₄)₂(OH)·2H₂O	1700	1700	1	266234	110
Marcasite ()*	Marcasite	FeS₂	1700	1700	1	266242	5674
Microcline ()*	Feldspar	K(AlSi₃O₈)	1700	1700	2	266234,266239	4924
Mitridatite ()*	Arseniosiderite	Ca₂Fe³⁺₃O₂(PO₄)₃·3H₂O	1700	1700	1	266234	129
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	1700	1700	3	266232,266234,266239	17380
Pyrite ()*	Pyrite	FeS₂	1700	1700	1	266238	39462
Quartz ()*	Quartz	SiO₂	1700	1700	5	266232,266234,266241,266243,266245	61156
Silver ()*	Copper	Ag	1700	1700	6	266230,266231,266235,266236,266240,266243	5186
Spodumene ()*	Pyroxene	LiAlSi₂O₆	1700	1700	1	266245	688
Strengite ()*	None	Fe³⁺(PO₄)·2H₂O	1700	1700	1	266234	263
Triphylite ()*	Olivine	LiFe²⁺(PO₄)	1700	1700	1	266234	313

1 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	Alexandra-0372	1700	1700	1700		Age of pegmatite					Yes			Li, Be, Sn, Cs, Ta, Nb, U	122418	Black Elk Peak (Harney Peak), Pennington Co., South Dakota, USA	Harney Peak	Norton and Redden (1990)	10.2138/am.2008.2633	AM75_631

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...