6.4" Scolecite Crystal Sprays - India

Scolecite is a member of the zeolite group of minerals containing mainly aluminum and silicon compounds. They exhibit a slender crystal habit and are very brittle in nature. Scolecite is a transparent, translucent crystal, typically colorless but also shows up in light pinks and yellows. Their appearance is often confused with their close zeolite relative, natrolite. They commonly form columnar clusters (sprays) in association with other minerals such as heulandite, apophyllite, stilbite, epidote, and calcite.

Most scolecite is collected in the state of Maharashtra, India, though there are other localities including Elk Mountain in Washington State. Crystal clusters are found lining cavities in igneous rock formations, usually granite, gneiss, or (specifically in India) basalt.