Beatuiful apophyllite crystal specimen. These all have a flatish bottom to be able to display without a stand. Apophyllite is a mineral occurring typically as white glassy prisms, usually as a secondary mineral in volcanic rocks. It is a hydrated silicate and fluoride of calcium and potassium. Stilbite is a Zeolite growing with Apophyllite.
Specimen measures roughly 3 inches by 1.25 inches.