Pyroxene Hornblende Gabbro

IUGS Definition ( QAPF Chart )

Pyroxene Hornblende Gabbro: “Now defined modally in the gabbroic rock classification as a variety of gabbro in which hornblende is between 5% and 85%.”
Typical Minerals
  • plagioclase
  • augite
  • hornblende
  • biotite