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5 inches tall
what any single unopened geode contains
Hemimorphite with some Calcion on a Goethite (Dark color) & Lemonite (Light Color) Matrix
classified as a tectosilicate
with mining activity dating back thousands of years
Green Heulandite (#1137) Amethyst 5 inches tallApproximate Size: 3 inches Green Heulandite with Stilbite 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
