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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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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.

Regions containing this locality

North America PlateTectonic Plate

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'
Reference: Berg, J., Wheeler, E.P. (1976): Osumilite of deep-seated origin in the contact aureole of the anorthositic Nain complex, Labrador, American Mineralogist, Vol. 61, pp. 20-37
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'
Reference: Evans, D. T. W., Geo, P., Dickson, W. L., and Geo, P., 2004, Dimension Stone in Newfoundland and Labrador, Department of Natural Resources, Newfoundland and Labrador, Open-file NFLD 2865, pp. 52.
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Reference: Berg, J., Wheeler, E.P. (1976): Osumilite of deep-seated origin in the contact aureole of the anorthositic Nain complex, Labrador, American Mineralogist, Vol. 61, pp. 20-37
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
Reference: Berg, J., Wheeler, E.P. (1976): Osumilite of deep-seated origin in the contact aureole of the anorthositic Nain complex, Labrador, American Mineralogist, Vol. 61, pp. 20-37
Hercynite
Formula: Fe2+Al2O4
Reference: Berg, J., Wheeler, E.P. (1976): Osumilite of deep-seated origin in the contact aureole of the anorthositic Nain complex, Labrador, American Mineralogist, Vol. 61, pp. 20-37
'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)
Reference: Berg, J., Wheeler, E.P. (1976): Osumilite of deep-seated origin in the contact aureole of the anorthositic Nain complex, Labrador, American Mineralogist, Vol. 61, pp. 20-37
Osumilite-(Mg)
Formula: KMg2Al3(Al2Si10)O30
Reference: Berg, J., Wheeler, E.P. (1976): Osumilite of deep-seated origin in the contact aureole of the anorthositic Nain complex, Labrador, American Mineralogist, Vol. 61, pp. 20-37
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
Reference: Berg, J., Wheeler, E.P. (1976): Osumilite of deep-seated origin in the contact aureole of the anorthositic Nain complex, Labrador, American Mineralogist, Vol. 61, pp. 20-37
Pyrrhotite
Formula: Fe7S8
Reference: Berg, J., Wheeler, E.P. (1976): Osumilite of deep-seated origin in the contact aureole of the anorthositic Nain complex, Labrador, American Mineralogist, Vol. 61, pp. 20-37
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
Graphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
Pyrrhotite2.CC.10Fe7S8
Group 4 - Oxides and Hydroxides
Gahnite4.BB.05ZnAl2O4
Hercynite4.BB.05Fe2+Al2O4
Quartz4.DA.05SiO2
Group 9 - Silicates
Anorthite9.FA.35Ca(Al2Si2O8)
Cordierite9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
Fayalite9.AC.05Fe2+2SiO4
Ferrosilite9.DA.05FeSiO3
'Labradorite' (TL)9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
Orthoclase9.FA.30K(AlSi3O8)
Osumilite-(Mg)9.CM.05KMg2Al3(Al2Si10)O30
Petedunnite9.DA.15Ca(Zn,Mn2+,Mg,Fe2+)Si2O6
Phlogopite9.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, Mixtures, 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 Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
O Hypersthene(Mg,Fe)SiO3
O FayaliteFe22+SiO4
O QuartzSiO2
O FerrosiliteFeSiO3
O Osumilite-(Mg)KMg2Al3(Al2Si10)O30
O Cordierite(Mg,Fe)2Al3(AlSi5O18)
O HercyniteFe2+Al2O4
O OrthoclaseK(AlSi3O8)
O PhlogopiteKMg3(AlSi3O10)(OH)2
O AnorthiteCa(Al2Si2O8)
O PetedunniteCa(Zn,Mn2+,Mg,Fe2+)Si2O6
O GahniteZnAl2O4
NaSodium
Na Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
MgMagnesium
Mg Hypersthene(Mg,Fe)SiO3
Mg Osumilite-(Mg)KMg2Al3(Al2Si10)O30
Mg Cordierite(Mg,Fe)2Al3(AlSi5O18)
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
Mg PetedunniteCa(Zn,Mn2+,Mg,Fe2+)Si2O6
AlAluminium
Al Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Al Osumilite-(Mg)KMg2Al3(Al2Si10)O30
Al Cordierite(Mg,Fe)2Al3(AlSi5O18)
Al HercyniteFe2+Al2O4
Al OrthoclaseK(AlSi3O8)
Al PhlogopiteKMg3(AlSi3O10)(OH)2
Al AnorthiteCa(Al2Si2O8)
Al GahniteZnAl2O4
SiSilicon
Si Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Si Hypersthene(Mg,Fe)SiO3
Si FayaliteFe22+SiO4
Si QuartzSiO2
Si FerrosiliteFeSiO3
Si Osumilite-(Mg)KMg2Al3(Al2Si10)O30
Si Cordierite(Mg,Fe)2Al3(AlSi5O18)
Si OrthoclaseK(AlSi3O8)
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si AnorthiteCa(Al2Si2O8)
Si PetedunniteCa(Zn,Mn2+,Mg,Fe2+)Si2O6
SSulfur
S PyrrhotiteFe7S8
KPotassium
K Osumilite-(Mg)KMg2Al3(Al2Si10)O30
K OrthoclaseK(AlSi3O8)
K PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Ca Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Ca AnorthiteCa(Al2Si2O8)
Ca PetedunniteCa(Zn,Mn2+,Mg,Fe2+)Si2O6
MnManganese
Mn PetedunniteCa(Zn,Mn2+,Mg,Fe2+)Si2O6
FeIron
Fe Hypersthene(Mg,Fe)SiO3
Fe FayaliteFe22+SiO4
Fe FerrosiliteFeSiO3
Fe Cordierite(Mg,Fe)2Al3(AlSi5O18)
Fe HercyniteFe2+Al2O4
Fe PyrrhotiteFe7S8
Fe PetedunniteCa(Zn,Mn2+,Mg,Fe2+)Si2O6
ZnZinc
Zn PetedunniteCa(Zn,Mn2+,Mg,Fe2+)Si2O6
Zn GahniteZnAl2O4

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.

Mindat Articles

Petedunnite from Labrador by Tony Nikischer


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