Tourmaline Photos             
Cochise College                                                                                                               
Photos of Gemstones
Translucent Gemstones

Geology Home Page
Roger Weller, geology instructor                       

wellerr@cochise.edu


Tourmaline 
last edited:  11/15/17    number of photos:  6
Tourmaline is Na(Li,Al)3Al6(BO3)3Si6O18(OH)4                        
hardness: 7 to 7.5
tourmaline as a mineral


cabochons
tourmaline cabochons, mixed colors:  A  B


tourmaline in jewelry

tourmaline beads:  A  B  C
pink tourmaline pendant: 
A*

Photos are copyright free for non-commercial educational uses. 
Just credit photos to R.Weller/Cochise College.
copyright 2017-R.Weller