Basalt  Photos
Cochise College
Photos of Rocks        Igneous Rocks
Virtual Geology Museum       Hall of Rocks
Geology Home Page
Roger Weller, geology instructor                       

wellerr@cochise.edu    copyright 2007

basalt, oxidized-1
When exposed to a warm, humid environment, the iron minerals in basalt oxidize
to a red color (hematite).


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