Franckeite var Potosiite San Jose Mine, Oruro Oruro Department, Bolivia Taille=7.5 x 4.6 cm
VIVIANITE Huanuni Mine, Huanuni, Dalence Province, Oruro Department, Bolivia As Vivianite specimens go, this is a monster. The longest crystal in the group is a whopping 13.38 inches (34 cm) in length - well over a foot! The color is deep green with blue overtones, and there are transparent sections. There is a small amount of typical Sulfide matrix and minor indications of wall contact on the backside along with a certain amount of nicks on a few exposed edges.
ametrine - my spirit stone (not birth stone)
hematitehearts: Vivianite Morococala Mine, Santa Fe Mining District, Dalence Province, Oruro Department, Bolivia on Natures Doorways