Vivianite, Huanuni, Bolivia libethenite 3 cm in circumference and

3 cm in circumference and weighs 292 grams

Each set comes with 9 mineral examples from the African continent

We were lucky enough to purchase a 40+ kilo unopened drum of it

and a opaque book of mica

The ring is size 8 but can be resized on request

Vivianite, Huanuni, Bolivia libethenite 3 cm in circumference andVivianite Huanuni, Pantaleon Dalenca Province, Oruro, Bolivia Ex. Greg Boles Collection 29 x 11 x 5 mm Mounted In A Standard Perky Box This mineral specimen is from the collection of Gregory Boles. Greg has had a lifelong passion for collecting minerals and other geological items. His hobby started at an early age in 1956 and continues to this day. Greg's enthusiasm for science led him to receive a BS in geology from the University of Kansas in 1987.