Hornblende Gabbro Hand Sample
Hornblende Gabbro Thin Section

Hornblende Gabbro

IUGS Definition ( Gabbroic Rocks with Hornblende Chart )

Hornblende Gabbro: "A variety of gabbro in which primary hornblende occurs."
Photos
Typical Minerals
  • calcic plagioclase feldspar: anorthite, bytownite, labradorite
  • clinopyroxene: augite, diopside
  • olivine
  • hornblende
  • accessory minerals: quartz, orthopyroxene, biotite, apatite, ilmenite, magnetite