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:
West Rand District (West Rand), Gauteng, South Africa

Oldest recorded age at locality: 2970
Youngest recorded age at locality: 2914

mindat Locality ID: 29065
mindat URL: http://www.mindat.org/loc-29065.html

Tectonic Settings:

Total number of sublocalities beneath "West Rand District (West Rand), Gauteng, South Africa": 51
Total number of bottom-level sublocalities: 40

Number of Child Localities: 5
Child Localities:
Driefontein Consolidated Mine
Far West Rand (West Wits Line)
Krugersdorp
Randfontein Estates Mine (Randfontein Mine)
Westonaria

Latitude: 26°15'54"S
Longitude: 27°40'12"E
Decimal Degree (lat, lon): -26.265,27.67

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.

Alunite	Amorphous	Aragonite	Arsenopyrite	Auricupride	Baryte	Bismutite	Brannerite	Calcioferrite	Calcite
Cerite	Chalcopyrite	Clay	Cobaltite	Copper	Fluorite	Gypsum	Leucophosphite	Mica	Nickeline
None	Not in a structural group	Perovskite	Phosphosiderite	Pyrite	Quartz	Rocksalt	Rutile	Sphalerite	Spinel
Taranakite	Zircon	hauchecornite

Aragonite ()*	Arsenopyrite ()*	Baryte ()*	Bismutite ()*	Brannerite ()*
Brushite ()*	Calcite ()*	Chalcopyrite ()*	Chromite ()*	Cobaltite ()*
Crandallite ()*	Dolomite ()*	Evansite ()*	Galena ()*	Gold ()*
Gwihabaite ()*	Gypsum ()*	Huntite ()*	Hydromagnesite ()*	Isoferroplatinum ()*
Leucophosphite ()*	Mackinawite ()*	Magnesite ()*	Montgomeryite ()*	Muscovite ()*
Nitromagnesite ()*	Gersdorffite-Pa3 ()*	Phosphosiderite ()*	Pyrite ()*	Pyrolusite ()*
Pyrrhotite ()*	Quartz ()*	Rutile ()*	Sasaite ()*	Sphalerite ()*
Strengite ()*	Taranakite ()*	Tučekite ()*	Uraninite ()*	Variscite ()*
Whitlockite ()*	Zircon ()*

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 As Au Ba Bi C Ca Co Cr Cu Fe H K Mg Mn N Ni O P Pb Pt S Sb Si Ti U Zn Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Alunite Amorphous Aragonite Arsenopyrite Auricupride Baryte Bismutite Brannerite Calcioferrite Calcite
Cerite Chalcopyrite Clay Cobaltite Copper Fluorite Gypsum Leucophosphite Mica Nickeline
None Not in a structural group Perovskite Phosphosiderite Pyrite Quartz Rocksalt Rutile Sphalerite Spinel
Taranakite Zircon hauchecornite

42 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
Aragonite ()*	Aragonite	Ca(CO₃)	2970	2914	15	106216,106218,106219,106228,106233,106238,106239,106240,106241,106245,106246,106247,106249,106250,106251	3250
Arsenopyrite ()*	Arsenopyrite	FeAsS	2970	2914	1	106209	9052
Baryte ()*	Baryte	Ba(SO₄)	2970	2914	2	106232,106253	11547
Bismutite ()*	Bismutite	Bi₂O₂(CO₃)	2970	2914	1	106232	716
Brannerite ()*	Brannerite	UTi₂O₆	2970	2914	1	106209	248
Brushite ()*	Gypsum	Ca(PO₃OH)·2H₂O	2970	2914	2	106216,106233	104
Calcite ()*	Calcite	Ca(CO₃)	2970	2914	15	106216,106218,106219,106228,106233,106238,106239,106240,106241,106245,106246,106249,106250,106251,106255	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	2970	2914	1	106209	27198
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	2970	2914	1	106209	3902
Cobaltite ()*	Cobaltite	CoAsS	2970	2914	1	106209	966
Crandallite ()*	Alunite	CaAl₃(PO₄)(PO₃OH)(OH)₆	2970	2914	1	106233	310
Dolomite ()*	None	CaMg(CO₃)₂	2970	2914	3	106211,106245,106251	9895
Evansite ()*	Amorphous	Al₃(PO₄)(OH)₆·8H₂O	2970	2914	2	106233,106251	56
Galena ()*	Rocksalt	PbS	2970	2914	3	106209,106221,106232	24243
Gold ()*	Copper	Au	2970	2914	14	106211,106213,106214,106221,106223,106226,106229,106230,106232,106234,106235,106252,106253,106255	30554
Gwihabaite ()*	None	(NH₄)(NO₃)	2970	2914	1	106250	10
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	2970	2914	4	106233,106241,106250,106251	6890
Huntite ()*	Not in a structural group	CaMg₃(CO₃)₄	2970	2914	2	106216,106238	69
Hydromagnesite ()*	None	Mg₅(CO₃)₄(OH)₂·4H₂O	2970	2914	5	106218,106219,106233,106239,106251	341
Isoferroplatinum ()*	Auricupride Perovskite	Pt₃Fe	2970	2914	2	106234,106235	128
Leucophosphite ()*	Leucophosphite	KFe³⁺₂(PO₄)₂(OH)·2H₂O	2970	2914	6	106216,106218,106233,106241,106246,106251	110
Mackinawite ()*	None	(Fe,Ni)_1+xS (x = 0-0.07)	2970	2914	1	106209	451
Magnesite ()*	Calcite	Mg(CO₃)	2970	2914	1	106216	1487
Montgomeryite ()*	Calcioferrite	Ca₄MgAl₄(PO₄)₆(OH)₄·12H₂O	2970	2914	1	106233	44
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	2970	2914	1	106234	17380
Nitromagnesite ()*	None	Mg(NO₃)₂·6H₂O	2970	2914	2	106233,106250	12
Gersdorffite-Pa3 ()*	Pyrite	NiAsS	2970	2914	2	106209,106234	767
Phosphosiderite ()*	Phosphosiderite	Fe³⁺(PO₄)·2H₂O	2970	2914	1	106233	182
Pyrite ()*	Pyrite	FeS₂	2970	2914	4	106209,106211,106234,106255	39462
Pyrolusite ()*	Rutile	MnO₂	2970	2914	3	106241,106248,106251	3106
Pyrrhotite ()*	Nickeline	Fe₇S₈	2970	2914	2	106209,106255	9056
Quartz ()*	Quartz	SiO₂	2970	2914	6	106211,106214,106221,106232,106254,106255	61156
Rutile ()*	Rutile	TiO₂	2970	2914	1	106209	5614
Sasaite ()*	None	Al₆(PO₄)₅(OH)₃·36H₂O	2970	2914	3	106216,106217,106233	11
Sphalerite ()*	Sphalerite	ZnS	2970	2914	4	106209,106221,106232,106253	21482
Strengite ()*	None	Fe³⁺(PO₄)·2H₂O	2970	2914	3	106216,106218,106233	263
Taranakite ()*	Taranakite	K₃Al₅(PO₃OH)₆(PO₄)₂·18H₂O	2970	2914	1	106216	57
Tučekite ()*	hauchecornite	Ni₉Sb₂S₈	2970	2914	2	106209,106234	17
Uraninite ()*	Fluorite	UO₂	2970	2914	1	106209	2718
Variscite ()*	None	Al(PO₄)·2H₂O	2970	2914	1	106233	301
Whitlockite ()*	Cerite	Ca₉Mg(PO₃OH)(PO₄)₆	2970	2914	1	106233	104
Zircon ()*	Zircon	Zr(SiO₄)	2970	2914	2	106209,106234	5251

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
	Kristen002293	2970	2914	2970-2914		sedimentation								Co, Au, Ni	29065	West Rand District (West Rand), Gauteng, South Africa	West Rand	Robb and Meyer (1995)	10.1016/0169-1368(95)00011-9	OGR10_67	association with Co, Au, and Ni from SAJG93_70

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...