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:
Gap Lode Pegmatite, Unorganized District, Pennington Co., South Dakota, USA

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

mindat Locality ID: 121937
mindat URL: http://www.mindat.org/loc-121937.html

Tectonic Settings:

Total number of sublocalities beneath "Gap Lode Pegmatite, Unorganized District, Pennington Co., South Dakota, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 43°51'55"N
Longitude: 103°33'34"W
Decimal Degree (lat, lon): 43.865277777778,-103.55944444444

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.

Apatite	Arseniosiderite	Childrenite	Clay	Feldspar	Leucophosphite	Mica	None	Olivine	Quartz

Albite ()*	Childrenite ()*	Fluorapatite ()*	Heterosite ()*	Hydroxylapatite ()*
Leucophosphite ()*	Microcline ()*	Mitridatite ()*	Muscovite ()*	Quartz ()*
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: Al Ca F Fe H K Li Na O P Si

Elements from minerals reported directly at this locality: Al Ca F Fe H K Li Na O P Si

Structural Groups for minerals in this locality:
Apatite Arseniosiderite Childrenite Clay Feldspar Leucophosphite Mica None Olivine Quartz

12 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	1700	1700	8803
Childrenite ()*	Childrenite	Fe²⁺Al(PO₄)(OH)₂·H₂O	1700	1700	93
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	1700	1700	2740
Heterosite ()*	Olivine	Fe³⁺(PO₄)	1700	1700	204
Hydroxylapatite ()*	Apatite	Ca₅(PO₄)₃OH	1700	1700	367
Leucophosphite ()*	Leucophosphite	KFe³⁺₂(PO₄)₂(OH)·2H₂O	1700	1700	110
Microcline ()*	Feldspar	K(AlSi₃O₈)	1700	1700	4924
Mitridatite ()*	Arseniosiderite	Ca₂Fe³⁺₃O₂(PO₄)₃·3H₂O	1700	1700	129
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	1700	1700	17380
Quartz ()*	Quartz	SiO₂	1700	1700	61156
Strengite ()*	None	Fe³⁺(PO₄)·2H₂O	1700	1700	263
Triphylite ()*	Olivine	LiFe²⁺(PO₄)	1700	1700	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...