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:
Prieska, Pixley Ka Seme District, Northern Cape, South Africa

Oldest recorded age at locality: 1930
Youngest recorded age at locality: 1930

mindat Locality ID: 57306
mindat URL: http://www.mindat.org/loc-57306.html

Tectonic Settings:

Total number of sublocalities beneath "Prieska, Pixley Ka Seme District, Northern Cape, South Africa": 3
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Keikamspoort Carbonatite
Koegas Mine
Marydale

Latitude: 29°42'"S
Longitude: 22°48'0"E
Decimal Degree (lat, lon): -29.7,22.8

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	None	Not in a structural group	Quartz

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 Fe H K Mg N Na O Si

Elements from minerals reported directly at this locality: Fe H K N Na O Si

Structural Groups for minerals in this locality:
Amphibole None Not in a structural group Quartz

5 IMA Minerals at location:

Ferro-actinolite ()*	Niter ()*	Quartz ()*	Riebeckite ()*	Sillimanite ()*

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
Ferro-actinolite ()*	Amphibole	Ca₂(Mg_2.5-0.0Fe²⁺_2.5-5.0)Si₈O₂₂(OH)₂			1	107191	129
Niter ()*	None	K(NO₃)	1930	1930	0		181
Quartz ()*	Quartz	SiO₂	1930	1930	0		61156
Riebeckite ()*	Amphibole	Na₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂	1930	1930	0		375
Sillimanite ()*	Not in a structural group	Al₂SiO₅			1	107192	1516

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Jen_0001069	MAGMATIC STYLE: Composite dyke forming ridge 2 km long and 300 m wide, but no contacts exposed. ASSOCIATED SILICATE ROCKS: Fenite.

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
	Jen_0001069	1930	1930	1930	Sm-Nd										57411	Keikamspoort Carbonatite, Prieska, Pixley Ka Seme District, Northern Cape, South Africa	Keikamspoort	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...