Starry night obsidian scatters fine pale speckles and swirls across deep volcanic glass — a night sky bottled in stone, each “constellation” unique to its piece. Hardness 5–5.5; cut for cabochons, spheres and display.Each starry night obsidian at GEMIC Institute is natural, certified in our Siem Reap laboratory and photographed exactly as offered. Unique skies; tracked worldwide shipping with our 30-day guarantee.