Hand Sample Missing
Thin Section Missing

Foidolite

IUGS Definition ( QAPF Chart )

Foidolite: “A general term for plutonic rocks defined in QAPF field 15, i.e. rocks containing more than 60% foids in total light-coloured constituents. If possible the most abundant foid should be used in the name, e.g. nephelinolite, leucitolite, etc.”
Photos
Typical Minerals
  • feldspathoids
  • alkali feldspar
  • plagioclase feldspar
  • biotite
  • amphibole
  • pyroxene
  • olivine