Roger Weller, geology instructor
email@example.com copyright 2010-R.Weller
lapis from Chile-1
Lapis lazuli is also known as lazurite and is a sodium aluminum silicate with
sulfur. This mineral used to be ground up to make the paint pigment
ultramarine. In gem form there are often inclusions of small pyrite crystals.
Photos are copyright free only for non-commercial educational uses.
Just credit photos to R.Weller/Cochise College.
Lapis in memory of Ray Dunn