Green Heulandite (#1134) Scolecite prized for its crystal clusters

prized for its crystal clusters and vivid coloring

This specimen has a cool bladed like pattern sorta like a Gar fish scale

creating a display-ready centerpiece

Las Choyas geodes formed millions of years ago within volcanic rocks as mineral-rich groundwater slowly deposited layers of silica inside hollow cavities

Green Heulandite (#1134) Scolecite prized for its crystal clustersApproximate Size: 2. 25 inches Green Heulandite mineral specimen. Location: Aurangabad Maharashtra, India. Facts: Heulandite has a sheet like open framework structure, classified as a tectosilicate, where it's structure is composed of interconnected six membered rings of silicate tetrahedra, creating channels within the crystal that allow it to act as a Zeolite, capable of exchanging cation like sodium, calcium, and potassium within its structure.