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:
Kruidfontein, Pilanesberg Alkaline Complex, Bojanala Platinum District, North West, South Africa

Oldest recorded age at locality: 1414
Youngest recorded age at locality: 1072

mindat Locality ID: 27326
mindat URL: http://www.mindat.org/loc-27326.html

Tectonic Settings:

Total number of sublocalities beneath "Kruidfontein, Pilanesberg Alkaline Complex, Bojanala Platinum District, North West, South Africa": 0
Total number of bottom-level sublocalities: 0

Latitude: 25°7'41"S
Longitude: 27°8'25"E
Decimal Degree (lat, lon): -25.128055555556,27.140277777778

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.

Baryte	Calcite	Chalcopyrite	Corundum	Feldspar	Fluorite	None	Pyrite	Quartz	Spinel

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 Ba C Ca Cu F Fe K Mg Na O S Si

Elements from minerals reported directly at this locality: Al Ba C Ca Cu F Fe K Mg Na O S Si

Structural Groups for minerals in this locality:
Baryte Calcite Chalcopyrite Corundum Feldspar Fluorite None Pyrite Quartz Spinel

13 IMA Minerals at location:

Albite ()*	Ankerite ()*	Baryte ()*	Calcite ()*	Chalcopyrite ()*
Dolomite ()*	Fluorite ()*	Hematite ()*	Magnetite ()*	Orthoclase ()*
Pyrite ()*	Quartz ()*	Siderite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	1414	1072	8803
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	1414	1072	3092
Baryte ()*	Baryte	Ba(SO₄)	1414	1072	11547
Calcite ()*	Calcite	Ca(CO₃)	1414	1072	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1414	1072	27198
Dolomite ()*	None	CaMg(CO₃)₂	1414	1072	9895
Fluorite ()*	Fluorite	CaF₂	1414	1072	9617
Hematite ()*	Corundum	Fe₂O₃	1414	1072	14640
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1414	1072	14899
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	1414	1072	2349
Pyrite ()*	Pyrite	FeS₂	1414	1072	39462
Quartz ()*	Quartz	SiO₂	1414	1072	61156
Siderite ()*	Calcite	Fe(CO₃)	1414	1072	6417

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Jen_0001128	MAGMATIC STYLE: 5 km diameter carbonatitic volcanic complex with extensive carbonatitic tuffs and breccias; some carbonatite dykes ASSOCIATED SILICATE ROCKS: Volcanic tuffs and breccias, flows of phonolite, trachyte, rhyolite and altered felsic lavas, and orthoclasite.

2 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_0001128	1414	1072	1243 ±171											27326	Kruidfontein, Pilanesberg Alkaline Complex, Bojanala Platinum District, North West, South Africa	Kruidfontein	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
	CG455_148_0001	1405	1384	1394.5 ± 10.5	U-Pb	host rock		titanite			Yes	Titanite			27328	Pilanesberg Mtn, Pilanesberg Alkaline Complex, Bojanala Platinum District, North West, South Africa	Pilanesberg alkaline complex	Elburg (2017)		CG455_148

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...