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Nain Complex, Labrador, Newfoundland and Labrador, Canada

Labradorite
Nain Complex, Labrador, Newfoundland and Labrador, Canada

Photo: 2003 John H. Betts

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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.

Mineral List

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

'Albite-Anorthite Series'
Anorthite
var: Labradorite
Biotite
Cordierite

Fayalite
Ferrosilite
Graphite
Hercynite

'Hornblende'
Hypersthene
Orthoclase
Osumilite-(Mg)

Phlogopite
Pyrrhotite
Quartz

19 entries listed. 10 valid minerals.

Localities in this Region

Canada

Newfoundland and Labrador
- Labrador
  - Nain Complex

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References

Waard, D. de and Wheeler, E. P., 1971, Chemical and Petrologic Trends in Anorthositic and Associated Rocks of the Nain Massif, Labrador, Lithos v4, p.367-380.

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Copyright © Jolyon Ralph and Ida Chau 1993-2013. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
Current server date and time: 4th Feb 2013 20:11:10