Roger Weller, geology instructor
[email protected] 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.
lapis
Photos are copyright free only for
non-commercial educational uses.
Just credit photos to R.Weller/Cochise College.
Lapis in memory of Ray Dunn