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:
Brownridge Township, Kenora District, Ontario, Canada

Oldest recorded age at locality: 2673
Youngest recorded age at locality: 2657

mindat Locality ID: 239358
mindat URL: http://www.mindat.org/loc-239358.html

Tectonic Settings:

Total number of sublocalities beneath "Brownridge Township, Kenora District, Ontario, Canada": 4
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
Ghost Lake Emerald Occurrence
Mavis Lake Occurrence
Taylor #1 Pegmatite
Taylor #2 Pegmatite

Latitude: 49°48'47"N
Longitude: 92°41'1"W
Decimal Degree (lat, lon): 49.813055555556,-92.683611111111

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	Apatite	Arsenopyrite	Beryl	Clay	Columbite	Corundum	Feldspar	Garnet	Mica
None	Olivine	Pyrite	Pyroxene	Quartz	Sphalerite	Stibnite	Titanite	Tourmaline	Zircon

Actinolite ()*	Albite ()*	Almandine ()*	Amblygonite ()*	Anthophyllite ()*
Arsenopyrite ()*	Beryl ()*	Bismuthinite ()*	Cummingtonite ()*	Fluor-dravite ()*
Fluorapatite ()*	Forsterite ()*	Graphite ()*	Ilmenite ()*	Magnesio-hornblende ()*
Microcline ()*	Muscovite ()*	Phlogopite ()*	Pyrite ()*	Quartz ()*
Sphalerite ()*	Spodumene ()*	Titanite ()*	Wodginite ()*	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 As B Be Bi C Ca F Fe H K Li Mg Mn Na O P S Si Sn Ta Ti Zn Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amphibole Apatite Arsenopyrite Beryl Clay Columbite Corundum Feldspar Garnet Mica
None Olivine Pyrite Pyroxene Quartz Sphalerite Stibnite Titanite Tourmaline Zircon

25 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
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂			1	32278	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)			1	32278	8803
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃			1	32278	2353
Amblygonite ()*	None	LiAl(PO₄)F	2673	2657	1	32276	244
Anthophyllite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂			1	32278	718
Arsenopyrite ()*	Arsenopyrite	FeAsS			1	32278	9052
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	2665	2665	4	32275,32276,32277,32278	4286
Bismuthinite ()*	Stibnite	Bi₂S₃			1	32278	1935
Cummingtonite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂			1	32278	327
Fluor-dravite ()*	Tourmaline	NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃F			1	32278	8
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F			1	32278	2740
Forsterite ()*	Olivine	Mg₂(SiO₄)			1	32278	1188
Graphite ()*	None	C			1	32278	2812
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃			1	32278	5433
Magnesio-hornblende ()*	Amphibole	Ca₂(Mg₄Al)(Si₇Al)O₂₂(OH)₂			1	32278	238
Microcline ()*	Feldspar	K(AlSi₃O₈)			1	32278	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂			1	32278	17380
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂			2	32275,32278	2273
Pyrite ()*	Pyrite	FeS₂			1	32278	39462
Quartz ()*	Quartz	SiO₂			2	32275,32278	61156
Sphalerite ()*	Sphalerite	ZnS			1	32278	21482
Spodumene ()*	Pyroxene	LiAlSi₂O₆	2673	2657	1	32276	688
Titanite ()*	Titanite	CaTi(SiO₄)O			1	32278	4899
Wodginite ()*	Columbite	Mn²⁺Sn⁴⁺Ta₂O₈	2673	2657	1	32276	78
Zircon ()*	Zircon	Zr(SiO₄)			1	32278	5251

3 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Prioritized?	Sample Source	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
Be-00060	2665	2665	2665		high		Chrysoberyl	Be	254470	Mavis Lake Occurrence, Brownridge Township, Kenora District, Ontario, Canada	Mavis Lake pegmatite group, Dryden Field, Superior Province, Manitoba, Canada	Breaks et al. (2005)		REGMD17_87
Bradley_2012_035	2673	2657	2665±8	U/Pb		columbite, tantalite			254470	Mavis Lake Occurrence, Brownridge Township, Kenora District, Ontario, Canada	Fairservice	McCauley and Bradley (2014)	10.3749/canmin.52.2.183	CM52_183
Kristen002492	2673	2657	2665±8			tantalo-niobates			254470	Mavis Lake Occurrence, Brownridge Township, Kenora District, Ontario, Canada	Mavis Lake Group	Tkachev (2011)	10, 1144/SP350,2	GSLSP350_7

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...