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:
Bulhoek (Bulhoekkop), Rustenburg (Rustenburg District), Bojanala Platinum District, North West, South Africa

mindat Locality ID: 57521
mindat URL: http://www.mindat.org/loc-57521.html

Tectonic Settings:

Total number of sublocalities beneath "Bulhoek (Bulhoekkop), Rustenburg (Rustenburg District), Bojanala Platinum District, North West, South Africa": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Vaalkop Dam

Latitude: 25°18'19"S
Longitude: 27°28'3"E
Decimal Degree (lat, lon): -25.305277777778,27.4675

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.

Aragonite	Baryte	Brookite	Calcite	Chlorite	Clay	Corundum	Diaspore	Gypsum	Marcasite
None	Not in a structural group	Pyrite	Quartz	Rutile	Smectite-vermiculite

Anatase ()*	Ankerite ()*	Aragonite ()*	Baryte ()*	Brookite ()*
Calcite ()*	Clinochlore ()*	Dolomite ()*	Goethite ()*	Gypsum ()*
Hematite ()*	Marcasite ()*	Montmorillonite ()*	Pyrite ()*	Quartz ()*
Rutile ()*	Siderite ()*

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 Fe H Mg Na O S Si Ti

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Aragonite Baryte Brookite Calcite Chlorite Clay Corundum Diaspore Gypsum Marcasite
None Not in a structural group Pyrite Quartz Rutile Smectite-vermiculite

17 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Anatase ()*	Not in a structural group	TiO₂	1	106821	2162
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	1	106821	3092
Aragonite ()*	Aragonite	Ca(CO₃)	1	106821	3250
Baryte ()*	Baryte	Ba(SO₄)	1	106821	11547
Brookite ()*	Brookite	TiO₂	1	106821	700
Calcite ()*	Calcite	Ca(CO₃)	1	106821	27770
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈	1	106821	1756
Dolomite ()*	None	CaMg(CO₃)₂	1	106821	9895
Goethite ()*	Diaspore	FeO(OH)	1	106821	7437
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	1	106821	6890
Hematite ()*	Corundum	Fe₂O₃	1	106821	14640
Marcasite ()*	Marcasite	FeS₂	1	106821	5674
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O	1	106821	1508
Pyrite ()*	Pyrite	FeS₂	1	106821	39462
Quartz ()*	Quartz	SiO₂	1	106821	61156
Rutile ()*	Rutile	TiO₂	1	106821	5614
Siderite ()*	Calcite	Fe(CO₃)	1	106821	6417

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...