Retrieving "Pigeonite" from the archives

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1. Tholeiite

   Linked via "pigeonitic"

   Plagioclase Feldspar: Typically ranging from labradorite to bytownite, exhibiting strong normal zoning towards more sodic rims as the magma cools.
   Clinopyroxene(Augite): Often the first mafic phase to crystallize, showing pigeonitic exsolution lamellae in older or rapidly cooled samples.
   Olivine: While present in less evolved [melts](/entries/magmatic-m…