smaragdite

A fibrous green amphibole mineral occurring in rocks such as eclogite.

An emerald-green mineral, thin-foliated to fibrous in structure, belonging to the amphibole or hornblende group: it is found in certain rocks, as the euphotide of the Alps.

A green foliated kind of amphibole, observed in eclogite and some varietis of gabbro.

A green foliated kind of amphibole, observed in eclogite and some varieties of gabbro.