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:
Lake Johnston, Dundas Shire, Western Australia, Australia

Oldest recorded age at locality: 2925
Youngest recorded age at locality: 2917

mindat Locality ID: 267018
mindat URL: http://www.mindat.org/loc-267018.html

Tectonic Settings:

Total number of sublocalities beneath "Lake Johnston, Dundas Shire, Western Australia, Australia": 3
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Emily Ann Ni Mine
Maggie Hays Ni Mine
Medcalf Vanadium Prospects

Latitude: 32°19'26"S
Longitude: 120°35'48"E
Decimal Degree (lat, lon): -32.323888888889,120.59666666667

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.

Amphibole	Beryl	Chalcopyrite	Clay	Copper	Corundum	Diaspore	Garnet	Kaolinite	Mica
Nickeline	None	Pentlandite	Pyrite	Quartz	Spinel	Talc

Almandine ()*	Anthophyllite ()*	Beryl ()*	Chalcopyrite ()*	Cummingtonite ()*
Goethite ()*	Gold ()*	Grunerite ()*	Hematite ()*	Ilmenite ()*
Kaolinite ()*	Magnetite ()*	Muscovite ()*	Pentlandite ()*	Pyrite ()*
Pyrrhotite ()*	Quartz ()*	Talc ()*	Tremolite ()*	Violarite ()*

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 Au Be Ca Cu Fe H K Mg Ni O S Si Ti

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amphibole Beryl Chalcopyrite Clay Copper Corundum Diaspore Garnet Kaolinite Mica
Nickeline None Pentlandite Pyrite Quartz Spinel Talc

20 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
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	2925	2917	1	15649	2353
Anthophyllite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	2925	2917	1	15649	718
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	2925	2917	1	15649	4286
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	2925	2917	1	15649	27198
Cummingtonite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	2925	2917	1	15649	327
Goethite ()*	Diaspore	FeO(OH)	2920	2920	1	15650	7437
Gold ()*	Copper	Au	2920	2920	1	15650	30554
Grunerite ()*	Amphibole	Fe²⁺₂Fe²⁺₅Si₈O₂₂(OH)₂	2925	2917	1	15649	223
Hematite ()*	Corundum	Fe₂O₃	2920	2920	1	15650	14640
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	2920	2920	1	15650	5433
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	2920	2920	1	15650	5591
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	2925	2917	2	15649,15650	14899
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	2925	2917	1	15649	17380
Pentlandite ()*	Pentlandite	(Ni,Fe)₉S₈	2925	2917	1	15649	1512
Pyrite ()*	Pyrite	FeS₂	2925	2917	2	15648,15649	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	2925	2917	1	15649	9056
Quartz ()*	Quartz	SiO₂	2925	2917	2	15649,15650	61156
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	2925	2917	2	15649,15650	3337
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	2920	2920	1	15650	2562
Violarite ()*	Spinel	FeNi₂S₄	2925	2917	1	15649	380

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Michelle_611	Ni-Cu sulfides in komatiite
Michelle_619	Ni-Cu sulfides in komatiite

3 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Age Interpret	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
EG105_1057_037	2920	2920	2920		Ni, Cu, Pt, Pd, Rh, Ir, Os, Ru	267018	Lake Johnston, Dundas Shire, Western Australia, Australia	Lake Johnston	Begg et al. (2010)	10.2113/econgeo.105.6.1057	EG105_1057
Michelle_611	2925	2917	>2921±4	Age of deposit or general age of the metallogenic province	Ni, Cu	250498	Emily Ann Ni Mine, Lake Johnston, Dundas Shire, Western Australia, Australia	Emily Ann	Hoatson et al. (2006)	10.1016/j.oregeorev.2006.05.002	OGR29_177	See Table. 1 Global resources of nickel metal and ages of the major nickel sulfide deposits of the world. Age can refer to the age of a specific nickel sulfide deposit, or the general age of the metallogenic province containing nickel deposits that are similar to a dated deposit (e.g. 2705 Ma Komatiite-hosted deposits in the Eastern Goldfields Province).
Michelle_619	2925	2917	>2921±4	Age of deposit or general age of the metallogenic province	Ni, Cu	250497	Maggie Hays Ni Mine, Lake Johnston, Dundas Shire, Western Australia, Australia	Maggie Hays	Hoatson et al. (2006)	10.1016/j.oregeorev.2006.05.002	OGR29_177	See Table. 1 Global resources of nickel metal and ages of the major nickel sulfide deposits of the world. Age can refer to the age of a specific nickel sulfide deposit, or the general age of the metallogenic province containing nickel deposits that are similar to a dated deposit (e.g. 2705 Ma Komatiite-hosted deposits in the Eastern Goldfields Province).

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...