Datolite Photos   
Cochise College               
Photos of Minerals
Geology Home Page

Roger Weller, geology instructor

[email protected]    copyright 2010-R.Weller 

 
massive datolite-polished-3
Keweenaw Peninsula, Michigan
Datolite is a hydrous calcium boron silicate often associated with zeolites in basalt.  The datolite
from northern Michigan occurs as cryptocrystalline fillings within gas bubble holes in basalt
(amygdules).  The most common color of the Michigan datolite is white but they be colored various
shades of grayish pink by inclusions of microscopic-sized flakes of native copper.


datolite                                                                                                                                             002
Photo is copyright free only for non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.

Specimen is on display at Cranbrook Institute of Science, Bloomfield Hills, Michigan.