last edited: 11/15/17 number of photos: 7
Howlite is H5Ca2SiB5O14
howlite as a mineral
howlite in jewelry
howlite pendant: A B
tumble polished dyed howlite: A B
Sterling Mine, Tick Canyon, California
Photos are copyright free for non-commercial educational uses.
Just credit photos to R.Weller/Cochise College.