Hand Sample Missing
Thin Section Missing

Foid-Bearing Monzonite

IUGS Definition ( QAPF Chart )

Foid-Bearing Monzonite: “A collective term for monzonites containing small amounts of feldspathoids (less than 10% of the felsic minerals).”
Photos
Chemistry
Typical Minerals
  • feldspar: significant amount of both alkali and plagioclase feldspars, often perthitic or antiperthitic
  • biotite
  • augite
  • hornblende
  • feldspathoids
  • accessory minerals: sphene, apatite