Green Heulandite (#1141) Barite 75 inches tall (8

75 inches tall (8

Weight: Approximately 60 g

Chalcedony

making it an essential addition to any collection

Trancas geodes formed inside volcanic rock as mineral rich groundwater slowly deposited layers of silica into hollow cavities

Green Heulandite (#1141) Barite 75 inches tall (8Approximate Size: 5. 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.