Photos of rocks with gneissic banding present in metamorphic rocks. Click on any photo for a larger image. Some of the larger images may be on other web sites and will open in a new window.

Gneiss outcrop photo

gneiss-hs_001. Gneissic banding in a hornblende-augite-plagioclase Grenville age metamorphic rock from near Putnam, NY, USA.

Gneiss outcrop photo

gneiss-hs_002. Gneissic banding in a hornblende-biotite-plagioclase Grenville age metamorphic rock from near Ticonderoga, NY, USA. The photo is approximately 1 meter across.

Gneiss with tight folds

gneiss-hs_003. Folded migmatitic, quartzofelspathic gneiss of Grenville age, Clarendon, VT, USA.

Gneiss with clear banding

gneiss-hs_004. Folded granitic 3.6 Ga gneiss, Godhaalb Fjord, West Greenland. Smithsonian display sample (NMNH 113545). The photo is approximately 20 cm across.