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Nain Complex, Labrador, Newfoundland and Labrador, Canadai
Regional Level Types
Nain ComplexComplex
Labrador- not defined -
Newfoundland and Labrador- not defined -
CanadaCountry

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Key
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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 56° 28' 13'' North , 62° 21' 2'' West (est.)
Margin of Error:~0km
Locality type:Complex
Köppen climate type:ET : Tundra


The Nain Complex consists of a wide variety of rock types and intrusions, mostly anorthosite and mapped over an area of about 20,000 square kilometers. Rock types range from anorthosite, norite, leuconorite, jotunite, fayalite-bearing opdalite, leucodiorite, diorite, syenodiorite, adamellite, troctalite-syenite, farsundite, charnockite, granodiorite, granite, to alaskite. The intrusion has been dated at 1.27-1.48 Ga. The Kiglapait Intrusion is included in the complex.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

13 valid minerals. 1 (FRL) - first recorded locality of unapproved mineral/variety/etc.

Detailed Mineral List:

'Albite-Anorthite Series'
Anorthite
Formula: Ca(Al2Si2O8)
Reference: Waard, D. de and Wheeler, E. P., 1971, Chemical and Petrologic Trends in Anorthositic and Asslociated Rocks of the Nain Massif, Labrador, Lithos v4, p. 367-380
'Biotite'
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Fayalite
Formula: Fe2+2SiO4
Reference: Waard, D. de and Wheeler, E. P., 1971, Chemical and Petrologic Trends in Anorthositic and Asslociated Rocks of the Nain Massif, Labrador, Lithos v4, p. 367-380
Ferrosilite
Formula: FeSiO3
Reference: Waard, D. de and Wheeler, E. P., 1971, Chemical and Petrologic Trends in Anorthositic and Asslociated Rocks of the Nain Massif, Labrador, Lithos v4, p. 367-380
Gahnite
Formula: ZnAl2O4
Reference: Nikischer, T., Mayhew, L. (2012) Petedunnite from Labrador, Mineral News, 28, # 9, 9-10.
Graphite
Formula: C
Hercynite
Formula: Fe2+Al2O4
'Hornblende'
Reference: Waard, D. de and Wheeler, E. P., 1971, Chemical and Petrologic Trends in Anorthositic and Asslociated Rocks of the Nain Massif, Labrador, Lithos v4, p. 367-380
'Hypersthene'
Formula: (Mg,Fe)SiO3
Reference: Waard, D. de and Wheeler, E. P., 1971, Chemical and Petrologic Trends in Anorthositic and Asslociated Rocks of the Nain Massif, Labrador, Lithos v4, p. 367-380
'Labradorite' (FRL)
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Reference: Dana, E.S. (1892) Dana's system of mineralogy, (6th edition), 325{327,
Orthoclase
Formula: K(AlSi3O8)
Osumilite-(Mg)
Formula: KMg2Al3(Al2Si10)O30
Petedunnite
Formula: Ca(Zn,Mn2+,Mg,Fe2+)Si2O6
Reference: Nikischer, T., Mayhew, L. (2012) Petedunnite from Labrador, Mineral News, Vol. 28, No. 9
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Pyrrhotite
Formula: Fe7S8
Quartz
Formula: SiO2
Reference: Waard, D. de and Wheeler, E. P., 1971, Chemical and Petrologic Trends in Anorthositic and Asslociated Rocks of the Nain Massif, Labrador, Lithos v4, p. 367-380

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Graphite'1.CB.05aC
Group 2 - Sulphides and Sulfosalts
'Pyrrhotite'2.CC.10Fe7S8
Group 4 - Oxides and Hydroxides
'Gahnite'4.BB.05ZnAl2O4
'Hercynite'4.BB.05Fe2+Al2O4
'Quartz'4.DA.05SiO2
Group 9 - Silicates
'Anorthite'9.FA.35Ca(Al2Si2O8)
'Cordierite'9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
'Fayalite'9.AC.05Fe2+2SiO4
'Ferrosilite'9.DA.05FeSiO3
'Labradorite' (TL)9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
'Orthoclase'9.FA.30K(AlSi3O8)
'Osumilite-(Mg)'9.CM.05KMg2Al3(Al2Si10)O30
'Petedunnite'9.DA.15Ca(Zn,Mn2+,Mg,Fe2+)Si2O6
'Phlogopite'9.EC.20KMg3(AlSi3O10)(OH)2
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Biotite'-
'Hornblende'-
'Hypersthene'-(Mg,Fe)SiO3

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Graphite1.3.6.2C
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Pyrrhotite2.8.10.1Fe7S8
Group 7 - MULTIPLE OXIDES
AB2X4
Gahnite7.2.1.4ZnAl2O4
Hercynite7.2.1.3Fe2+Al2O4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Fayalite51.3.1.1Fe2+2SiO4
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with Al substituted rings
Cordierite61.2.1.1(Mg,Fe)2Al3(AlSi5O18)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Ferrosilite65.1.2.2FeSiO3
Petedunnite65.1.3a.5Ca(Zn,Mn2+,Mg,Fe2+)Si2O6
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Orthoclase76.1.1.1K(AlSi3O8)
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
Anorthite-Ca(Al2Si2O8)
'Biotite'-
'Hornblende'-
'Hypersthene'-(Mg,Fe)SiO3
'Labradorite' (FRL)-(Ca,Na)[Al(Al,Si)Si2O8]
Osumilite-(Mg)-KMg2Al3(Al2Si10)O30

List of minerals for each chemical element

HHydrogen
H PhlogopiteKMg3(AlSi3O10)(OH)2
CCarbon
C GraphiteC
OOxygen
O AnorthiteCa(Al2Si2O8)
O Cordierite(Mg,Fe)2Al3(AlSi5O18)
O FayaliteFe22+SiO4
O FerrosiliteFeSiO3
O GahniteZnAl2O4
O HercyniteFe2+Al2O4
O Hypersthene(Mg,Fe)SiO3
O Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
O OrthoclaseK(AlSi3O8)
O Osumilite-(Mg)KMg2Al3(Al2Si10)O30
O PetedunniteCa(Zn,Mn2+,Mg,Fe2+)Si2O6
O PhlogopiteKMg3(AlSi3O10)(OH)2
O QuartzSiO2
NaSodium
Na Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
MgMagnesium
Mg Cordierite(Mg,Fe)2Al3(AlSi5O18)
Mg Hypersthene(Mg,Fe)SiO3
Mg Osumilite-(Mg)KMg2Al3(Al2Si10)O30
Mg PetedunniteCa(Zn,Mn2+,Mg,Fe2+)Si2O6
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
AlAluminium
Al AnorthiteCa(Al2Si2O8)
Al Cordierite(Mg,Fe)2Al3(AlSi5O18)
Al GahniteZnAl2O4
Al HercyniteFe2+Al2O4
Al Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Al OrthoclaseK(AlSi3O8)
Al Osumilite-(Mg)KMg2Al3(Al2Si10)O30
Al PhlogopiteKMg3(AlSi3O10)(OH)2
SiSilicon
Si AnorthiteCa(Al2Si2O8)
Si Cordierite(Mg,Fe)2Al3(AlSi5O18)
Si FayaliteFe22+SiO4
Si FerrosiliteFeSiO3
Si Hypersthene(Mg,Fe)SiO3
Si Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Si OrthoclaseK(AlSi3O8)
Si Osumilite-(Mg)KMg2Al3(Al2Si10)O30
Si PetedunniteCa(Zn,Mn2+,Mg,Fe2+)Si2O6
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si QuartzSiO2
SSulfur
S PyrrhotiteFe7S8
KPotassium
K OrthoclaseK(AlSi3O8)
K Osumilite-(Mg)KMg2Al3(Al2Si10)O30
K PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Ca AnorthiteCa(Al2Si2O8)
Ca Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Ca PetedunniteCa(Zn,Mn2+,Mg,Fe2+)Si2O6
MnManganese
Mn PetedunniteCa(Zn,Mn2+,Mg,Fe2+)Si2O6
FeIron
Fe Cordierite(Mg,Fe)2Al3(AlSi5O18)
Fe FayaliteFe22+SiO4
Fe FerrosiliteFeSiO3
Fe HercyniteFe2+Al2O4
Fe Hypersthene(Mg,Fe)SiO3
Fe PetedunniteCa(Zn,Mn2+,Mg,Fe2+)Si2O6
Fe PyrrhotiteFe7S8
ZnZinc
Zn GahniteZnAl2O4
Zn PetedunniteCa(Zn,Mn2+,Mg,Fe2+)Si2O6

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Washington, H.S. & Merwin, H.E. (1923): Notes on enstatite, hypersthene and actinolite. American Mineralogist 8, 63-67. [with an analysis of hypersthene from Nain, Labrador]
Waard, D. de and Wheeler, E. P. (1971): Chemical and Petrologic Trends in Anorthositic and Associated Rocks of the Nain Massif, Labrador. Lithos 4, 367-380.

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Petedunnite from Labrador by Tony Nikischer


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