Basalt  Photos
Cochise College
Photos of Rocks       
Igneous Rocks
Geology Home Page
Roger Weller, geology instructor                   copyright 2011


basalt, oxidized-1
When exposed to a warm, humid environment, the iron minerals

in basalt oxidize to a red color (hematite).

basalt                                                                                                                                                 4a

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