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:
Wesselton Mine (Wesselton Shaft), KEM JV Mine (Kimberley Ekapa Mining Joint Venture Mine; Kimberley Underground Mine), Kimberley, Francis Baard District, Northern Cape, South Africa

Oldest recorded age at locality: 90
Youngest recorded age at locality: 81

mindat Locality ID: 26170
mindat URL: http://www.mindat.org/loc-26170.html

Tectonic Settings:

Total number of sublocalities beneath "Wesselton Mine (Wesselton Shaft), KEM JV Mine (Kimberley Ekapa Mining Joint Venture Mine; Kimberley Underground Mine), Kimberley, Francis Baard District, Northern Cape, South Africa": 0
Total number of bottom-level sublocalities: 0

Latitude: 28°46'4"S
Longitude: 24°49'43"E
Decimal Degree (lat, lon): -28.767777777778,24.828611111111

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.

Calcite	Clay	Corundum	Diamond	Mica	None	Perovskite	Pyroxene	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 C Ca Cr Fe H K Mg O Si Ti

Elements from minerals reported directly at this locality: Al C Ca Cr Fe H K Mg O Si Ti

Structural Groups for minerals in this locality:
Calcite Clay Corundum Diamond Mica None Perovskite Pyroxene Spinel

9 IMA Minerals at location:

Calcite ()*	Chromite ()*	Corundum ()*	Diamond ()*	Enstatite ()*
Ilmenite ()*	Perovskite ()*	Phlogopite ()*	Spinel ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Calcite ()*	Calcite	Ca(CO₃)	90	81	27770
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	90	81	3902
Corundum ()*	Corundum	Al₂O₃	90	81	1797
Diamond ()*	Diamond	C	90	81	697
Enstatite ()*	Pyroxene	Mg₂Si₂O₆	90	81	944
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	90	81	5433
Perovskite ()*	Perovskite	CaTiO₃	90	81	495
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	90	81	2273
Spinel ()*	Spinel	MgAl₂O₄	90	81	1934

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Michelle_384	See Section 2. Age refers to the kimberlite emplacement in the Kimberley Kimberlite cluster.

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
	Michelle_384	90	81	81-90		Age of kimberlite emplacement for the Kimberley cluster					Yes				56310	Kimberley, Francis Baard District, Northern Cape, South Africa	Kimberley kimberlites cluster	Giuliani et al (2014)	10.1016/j.epsl.2014.05.044	EPSL400_132	Age of kimberlite emplacement for the Kimberley cluster. Author believes age to reflect previous geochronological work of various methods.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...