Roger Weller, geology instructor
firstname.lastname@example.org copyright 2010-R.Weller
gem quality lapis-2
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.
Gemstones courtesy of Global Gems
Specializing in lapis cutting material