Howlite Photos                
Cochise College                                                                                                          
Photos of Gemstones
Translucent Gemstones

Geology Home Page
Roger Weller, geology instructor               

last edited:  11/15/17    number of photos:  7
Howlite is H5Ca2SiB5O14

hardness: 3.5                                                                                                      
howlite as a mineral


howlite in jewelry

howlite pendant:  A  B

dyed howlite
tumble polished dyed howlite:  A  B

howlite, uncut

rough howlite:  A  B  C

USA locations
     Sterling Mine, Tick Canyon, California


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