編號 102680163

編號 102680163

Natrolite is a hydrated sodium aluminum silicate—a zeolite mineral—renowned for its slender, needle-like crystals, which often grow in radiating or fibrous aggregates. Typically white, colorless, or yellowish, it is found in volcanic rocks, particularly in cavities and magmatic rocks. It has a Mohs hardness of 5–5.5, a vitreous-to-silky luster, and is often used by collectors.