Howlite PhotosRoger Weller, geology instructor
wellerr@cochise.edu copyright 2007
dyed howlite-tumble polished-2
closer view
Howlite is often dyed to look like turquoise.

Photo is copyright free for non-commercial educational uses.
Just credit
photo to R.Weller/Cochise College.
Gemstones courtesy of Village Originals