Gabbro
Photoswellerr@cochise.edu copyright 2007
gabbro with labradorite-A
Gabbro is a coarse-grained, dark igneous rock. The flashes
of color come from a variety of
plagioclase feldspar known as labradorite.

Photo is copyright free for non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.