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:
Armstrong Ni Mine, Widgiemooltha, Coolgardie Shire, Western Australia, Australia

Oldest recorded age at locality: 2709
Youngest recorded age at locality: 2701

mindat Locality ID: 248267
mindat URL: http://www.mindat.org/loc-248267.html

Tectonic Settings:

Total number of sublocalities beneath "Armstrong Ni Mine, Widgiemooltha, Coolgardie Shire, Western Australia, Australia": 0
Total number of bottom-level sublocalities: 0

Latitude: 31°25'36"S
Longitude: 121°31'35"E
Decimal Degree (lat, lon): -31.426666666667,121.52638888889

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	Aragonite	Calcite	Gypsum	Hexahydrite	Millerite	None	Not in a structural group	Pentlandite	Pyrite
Quartz

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: C Ca Cr Fe H Mg Ni O S Si Sr

Elements from minerals reported directly at this locality: C Ca Cr Fe H Mg Ni O S Si Sr

Structural Groups for minerals in this locality:
Amphibole Aragonite Calcite Gypsum Hexahydrite Millerite None Not in a structural group Pentlandite Pyrite
Quartz

11 IMA Minerals at location:

Actinolite ()*	Aragonite ()*	Calcite ()*	Dolomite ()*	Gypsum ()*
Millerite ()*	Nickelhexahydrite ()*	Pentlandite ()*	Putnisite ()*	Pyrite ()*
Quartz ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	2709	2701	3419
Aragonite ()*	Aragonite	Ca(CO₃)	2709	2701	3250
Calcite ()*	Calcite	Ca(CO₃)	2709	2701	27770
Dolomite ()*	None	CaMg(CO₃)₂	2709	2701	9895
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	2709	2701	6890
Millerite ()*	Millerite	NiS	2709	2701	1066
Nickelhexahydrite ()*	Hexahydrite	Ni(SO₄)·6H₂O	2709	2701	37
Pentlandite ()*	Pentlandite	(Ni,Fe)₉S₈	2709	2701	1512
Putnisite ()*	Not in a structural group	SrCa₄Cr³⁺₈(CO₃)₈(SO₄)(OH)₁₆·25H₂O	2709	2701	2
Pyrite ()*	Pyrite	FeS₂	2709	2701	39462
Quartz ()*	Quartz	SiO₂	2709	2701	61156

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Michelle_514	Komatiite deposit in the Eastern Goldfields Province, discovered in 1970. Putnisite occurs in the oxidation zone of komatiite and dioritic lodes.
Michelle_598	Ni-Cu sulfides in komatiite

2 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_514	2709	2701	2705±4	U-Pb	Age of deposit		zircon				Zircon			248267	Armstrong Ni Mine, Widgiemooltha, Coolgardie Shire, Western Australia, Australia	Armstrong Ni Mine	Hoatson et al. (2006)	10.1016/j.oregeorev.2006.05.002	OGR29_177	Table. 1. Age of deposit
	Michelle_598	2709	2701	2705±4		Age of deposit or general age of the metallogenic province								Ni, Cu	248267	Armstrong Ni Mine, Widgiemooltha, Coolgardie Shire, Western Australia, Australia	Armstrong	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). Dates on felsic volcanic rocks that include komatiites are consistent with an inferred eruption age for these komatiites of c. 2705 Ma.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...