Granodiorite is an intrusive igneous rock similar to granite, but contains more plagioclase than potassium feldspar. It usually contains abundant biotite mica and hornblende, giving it a darker appearance than true granite. Mica may be present in well-formed hexagonal crystals, and hornblende may appear as needle-like crystals.

On average the upper continental crust has the same composition as granodiorite.

External link

• Grandiorite definition at USGS (public domain source)

Igneous rocks

Granodiorit | Гранодиорит | Granodioriet | Granodiorito | Granodiorit