Sillimanite Photos                 
Cochise College                                                                                                                      
Photos of Gemstones
Transparent Gemstones
Geology Home Page
Roger Weller, geology instructor               


last edited:  11/10/17    number of photos:  2
Sillimanite is Al2SiO5
hardness: 6 to 7
sillimanite as a mineral                                                 


faceted sillimanite

sillimanite, faceted:  A  B


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