Astrophyllite — “star leaf” in Greek — forms bronze-gold bladed sprays that flash like starbursts against dark matrix. This rare potassium-sodium titanosilicate, most famously from Russia’s Kola Peninsula, is soft (about 3 on Mohs) and cut mainly as cabochons and collector display pieces.GEMIC Institute selects natural astrophyllite specimens with vivid ray patterns, certifies each in our Siem Reap laboratory and photographs the exact piece for its listing. One of a kind, shipped worldwide with tracking, 30-day inspection.