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Cumberlandite

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A variety of dunite from Cumberland, Rhode Island, USA


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Classification of CumberlanditeHide

Mineralogy of CumberlanditeHide

Essential minerals - these are minerals that are required within the classification of this rock:
IlmeniteFe2+TiO3
MagnetiteFe2+Fe3+2O4
OlivineEquivalent to Fayalite-Forsterite Series; usually a more or less Fe-bearing forsterite.
Accessory minerals - these are minor components, often far less than 1% of the total mineral material:
Feldspar > Plagioclase > Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
SpinelMgAl2O4

References for CumberlanditeHide

Reference List:
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Le Maitre (ed.) (2002) Igneous Rocks - A Classification and Glossary of Terms. Cambridge Press

Internet Links for CumberlanditeHide

Mineral and/or Locality  
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