Erionite is a rare zeolite mineral typically found in volcanic tuff deposits, forming fibrous or needle-like crystals that often appear in white, cream, or pale grey hues with a silky sheen. Known historically in folk traditions for its unique and intriguing formations, it has been regarded as a stone of transformation. Metaphysically, erionite is believed to enhance spiritual growth, encourage adaptability, and support deep introspection. Its delicate fibres and unusual structure make it a fascinating choice for collectors and energy workers seeking subtle yet profound influence.