Pumice Photos
Cochise College
Photos of Rocks       

Igneous Rocks
Geology Home Page
Roger Weller, geology instructor                       

wellerr@cochise.edu    copyright 2011 

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.


pumice                                                                                                                                               2a

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