Roger Weller, geology instructor
firstname.lastname@example.org copyright 2010-R.Weller
Aquamarine is the bluish green variety of beryl. As a gemstone, value depends
upon clarity, lack of fractures, color intensity, and the extent to which the blue
color dominants over the green.
Photo is copyright free for non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.