pistacite
/ˈpɪstəsʌɪt
/noun [mass noun]
A green iron-rich variety of epidote.This is a showy specimen, well crystallized on both sides, with perfect, clear Quartz and green Pistacite.
Origin
Early 19th century: from German Pistazit, from Latin pistacia 'pistachio' (because of its colour) + -ite1.