is a variety of Augite with a low iron content and was
originally reported from Fassa Valley, Trento Province, Trentino-Alto Adige, Italy.
Fassaite is thought to be a contact mineral formed at high temperature on the
interface between volcanic rocks and limestone. It is also reported in meteorites.
Fassaite is found in colors of pale to bright to dark
green and brown to greenish brown.
In the Monzoni Mts, Fassa Valley, Trento Province, Trentino-Alto Adige, Italy;
Pitigliano, Grosseto Province, Tuscany, Italy; Gilgit
and Skardu Districts, Baltistan, Gilgit-Baltistan (Northern Areas), Pakistan;
Úškrtová Valley, Hodruša - Hámre (Hodritsch), Žarnovica Co., Banská Bystrica Region, Slovakia;
Marbella, Málaga, Andalusia, Spain.
see the Augite information
page for more information.