Oolite Photos                     

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


oolitic hematite


last edited:  10/26/15  number of photos:  5
Oolite is made up tiny round grains of calcite or hematite
that have been produced by coating sand grains with layers                                
of these minerals. 
An individual grain, that in structure somewhat resembles
a pearl, is called an "ool".


oolite, hematitic:  A  B  C
oolite, siliceous:  A 


Photos are copyright free for non-commercial educational uses. 
Just credit photos to R.Weller/Cochise College.
copyright 2016-R.Weller