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:
Clairwood Quarries, Umhlatuzana Valley, Durban, eThekwini District, KwaZulu-Natal, South Africa

Oldest recorded age at locality: 261
Youngest recorded age at locality: 259

mindat Locality ID: 53785
mindat URL: http://www.mindat.org/loc-53785.html

Tectonic Settings:

Total number of sublocalities beneath "Clairwood Quarries, Umhlatuzana Valley, Durban, eThekwini District, KwaZulu-Natal, South Africa": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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	Analcime	Apophyllite	Baryte	Calcite	Chabazite	Clay	Clinozoisite	Copiapite	Diaspore
Epidote	Fluorite	Gypsum	Gyrolite	Halotrichite	Harmotome	Heulandite	Kaolinite	Mica	None
Not in a structural group	Prehnite	Pyrite	Quartz	Smectite-vermiculite	Zircon

Analcime ()*	Baryte ()*	Calcite ()*	Chabazite-Ca ()*	Chabazite-Na ()*
Chantalite ()*	Dickite ()*	Epidote ()*	Ferricopiapite ()*	Ferrimolybdite ()*
Fluorapophyllite-(K) ()*	Fluorite ()*	Goethite ()*	Gypsum ()*	Halotrichite ()*
Heulandite-Ca ()*	Jarosite ()*	Kaolinite ()*	Laumontite ()*	Montmorillonite ()*
Muscovite ()*	Nacrite ()*	Phillipsite-Na ()*	Prehnite ()*	Pyrite ()*
Quartz ()*	Romanèchite ()*	Siderite ()*	Truscottite ()*	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 Ba C Ca F Fe H K Mg Mn Mo Na O S Si Zr

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

Structural Groups for minerals in this locality:
Alunite Analcime Apophyllite Baryte Calcite Chabazite Clay Clinozoisite Copiapite Diaspore
Epidote Fluorite Gypsum Gyrolite Halotrichite Harmotome Heulandite Kaolinite Mica None
Not in a structural group Prehnite Pyrite Quartz Smectite-vermiculite Zircon

30 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	261	259	1627
Baryte ()*	Baryte	Ba(SO₄)	261	259	11547
Calcite ()*	Calcite	Ca(CO₃)	261	259	27770
Chabazite-Ca ()*	Chabazite	Ca₂[Al₄Si₈O₂₄]·13H₂O	261	259	310
Chabazite-Na ()*	Chabazite	(Na₃K)[Al₄Si₈O₂₄]·11H₂O	261	259	66
Chantalite ()*	None	CaAl₂(SiO₄)(OH)₄	261	259	3
Dickite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	261	259	651
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	261	259	8173
Ferricopiapite ()*	Copiapite	Fe³⁺_0.67Fe³⁺₄(SO₄)₆(OH)₂·20H₂O	261	259	41
Ferrimolybdite ()*	None	Fe³⁺₂(Mo⁶⁺O₄)₃·7H₂O	261	259	345
Fluorapophyllite-(K) ()*	Apophyllite	KCa₄Si₈O₂₀F·8H₂O	261	259	303
Fluorite ()*	Fluorite	CaF₂	261	259	9617
Goethite ()*	Diaspore	FeO(OH)	261	259	7437
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	261	259	6890
Halotrichite ()*	Halotrichite	Fe²⁺Al₂(SO₄)₄·22H₂O	261	259	409
Heulandite-Ca ()*	Heulandite	(Ca,Na,K)₅(Si₂₇Al₉)O₇₂·26H₂O	261	259	246
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	261	259	2228
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	261	259	5591
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	261	259	1271
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O	261	259	1508
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	261	259	17380
Nacrite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	261	259	112
Phillipsite-Na ()*	Harmotome	Na₆(Si₁₀Al₆)O₃₂·12H₂O	261	259	27
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂	261	259	1898
Pyrite ()*	Pyrite	FeS₂	261	259	39462
Quartz ()*	Quartz	SiO₂	261	259	61156
Romanèchite ()*	None	(Ba,H₂O)₂(Mn⁴⁺,Mn³⁺)₅O₁₀	261	259	312
Siderite ()*	Calcite	Fe(CO₃)	261	259	6417
Truscottite ()*	Gyrolite	Ca₁₄Si₂₄O₅₈(OH)₈·2H₂O	261	259	10
Zircon ()*	Zircon	Zr(SiO₄)	261	259	5251

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Giersdorf_00000802	The Eshowe Formation is part of the sediments of the KwaZulu-Natal area of South Africa

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
	Giersdorf_00000802	261	259	260±1		Age given in support of earlier works by Gentle el al. (1978) due to its consistency in its findings					Yes				57245	Eshowe, Uthungulu District, KwaZulu-Natal, South Africa	Eshowe	Bordy et al. (2005)	10.2113/108.3.454	SAJG107_397	Age of the clays of the Eshowe group

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...