The Dynamic Earth View Multimedia Version

Main Menu >  GeoGallery >  Rocks >  Diabase
TITLE: GeoGallery

Choose one of the following Rocks for more details:

Diabase

Diabase

Belmont Diabase Sheet. The large black pyroxene and white plagioclase crystals--and the absence of glass or gas cavities--are giveaways that this rock cooled slowly underground.


bottom navigation bar Smithsonian National Museum of Natural History Department of Mineral Sciences website Credits