Scolecite vs Stilbite

Scolecite is a hydrous calcium aluminum silicate mineral in the zeolite group. It commonly forms slender, needle-like or radiating white crystals and is valued mainly by mineral collectors for its delicate crystal habits. The name comes from the Greek word for “worm,” referring to the mineral’s movement or curling behavior when heated. Important specimens have been found near Pune, India.

Stilbite is a group of hydrated calcium and sodium aluminosilicate minerals in the zeolite family. It commonly forms pale, glassy crystals arranged in sheaf-like, fan-shaped, or bow-tie aggregates, which makes it popular with mineral collectors. Stilbite occurs in cavities and veins of volcanic rocks, especially basalt, where it forms from mineral-rich fluids. The name comes from the Greek word me...