Roger Weller, geology instructor
email@example.com copyright 2010-R.Weller
vivianite crystal from Morocco-1
Vivianite is a hydrous iron phosphate. It has a pearly luster and on exposure to light
turns blue or green.
Photo is copyright free only for non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.
Specimen courtesy of Arizona
specializing in mineral specimens
Neil Bearce, author of Minerals of Arizona
2116 E. Balboa, Tempe, AZ 85282
(480) 820 4974