Pumice 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 

different colors of pumice
Pumice is a glassy volcanic foam. Its color is determined by iron content.
Both of these specimens of pumice will float on water.
 

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