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:
Opikeigan Lake Area, Lilypad Lakes Pegmatites, Kenora District, Ontario, Canada

Oldest recorded age at locality: 2799
Youngest recorded age at locality: 2550

mindat Locality ID: 255692
mindat URL: http://www.mindat.org/loc-255692.html

Tectonic Settings:

Total number of sublocalities beneath "Opikeigan Lake Area, Lilypad Lakes Pegmatites, Kenora District, Ontario, Canada": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Rubellite Dike

Latitude: 51°38'51"N
Longitude: 88°14'30"W
Decimal Degree (lat, lon): 51.6475,-88.241666666667

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	Clay	Columbite	Feldspar	Fluorite	Mica	None	Pyroxene	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: Al Ca F H K Li Mg Mn Na O Rb Si Ta

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amphibole Clay Columbite Feldspar Fluorite Mica None Pyroxene Quartz

9 IMA Minerals at location:

Albite ()*	Fluorite ()*	Holmquistite ()*	Microcline ()*	Muscovite ()*
Quartz ()*	Rubicline ()*	Spodumene ()*	Tantalite-(Mn) ()*

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
Albite ()*	Feldspar	Na(AlSi₃O₈)	2799	2550	1	32357	8803
Fluorite ()*	Fluorite	CaF₂	2799	2550	1	32357	9617
Holmquistite ()*	Amphibole	Li₂(Mg₃Al₂)Si₈O₂₂(OH)₂	2799	2550	1	32357	42
Microcline ()*	Feldspar	K(AlSi₃O₈)	2799	2550	1	32357	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	2799	2550	1	32357	17380
Quartz ()*	Quartz	SiO₂	2799	2550	1	32357	61156
Rubicline ()*	Feldspar	Rb(AlSi₃O₈)	2799	2550	1	32357	6
Spodumene ()*	Pyroxene	LiAlSi₂O₆	2799	2550	1	32357	688
Tantalite-(Mn) ()*	Columbite	Mn²⁺Ta₂O₆	2799	2550	1	32357	211

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
	Alexandra-0296	2799	2550	2799-2550		Age of pegmatite					Yes				228550	Root Lake Pegmatite Group, Kenora District, Ontario, Canada	Superior Province	Černý (1990)	10.1007/BF01830621	GR79_183

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...