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:
Grosmont Mica Mine, Grosmont (Grossmont) District, Coolgardie, Coolgardie Shire, Western Australia, Australia

Oldest recorded age at locality: 2742
Youngest recorded age at locality: 2670

mindat Locality ID: 266224
mindat URL: http://www.mindat.org/loc-266224.html

Tectonic Settings:

Total number of sublocalities beneath "Grosmont Mica Mine, Grosmont (Grossmont) District, Coolgardie, Coolgardie Shire, Western Australia, Australia": 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.

Amorphous	Clay	Feldspar	Mica	None	Quartz	Topaz

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 F H K Na O Si

Elements from minerals reported directly at this locality: Al F H K Na O Si

Structural Groups for minerals in this locality:
Amorphous Clay Feldspar Mica None Quartz Topaz

6 IMA Minerals at location:

Albite ()*	Microcline ()*	Muscovite ()*	Opal ()*	Quartz ()*
Topaz ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	2742	2670	8803
Microcline ()*	Feldspar	K(AlSi₃O₈)	2742	2670	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	2742	2670	17380
Opal ()*	Amorphous	SiO₂·nH₂O	2742	2670	2994
Quartz ()*	Quartz	SiO₂	2742	2670	61156
Topaz ()*	Topaz	Al₂SiO₄F₂	2742	2670	1476

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
	Mo-N382_703-0001	2742	2670	2706±36	Re-Os isochron				Z58542, Z55765, Z55710, Z55725, Z58502, Z58507, Z5		Yes			Mo	225	Kambalda, Coolgardie Shire, Western Australia, Australia	Kambalada, Perseverance, and Mt. Keith	Foster et al. (1996)	10.1038/382703a0	N382_703

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...