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

wellerr@cochise.edu    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