Prehnite Faceted Rondelles measure approximately 8mm graduating up to 10mm in diameter, beads exhibit a glass like luster, the gemstones have excellent polish and faceting creating a symmetrical shape, these Prehnite beads are matched on strand for quality and color, gems are a strongly greenish yellowish hue, and the beads show a transparent Prehnite with wonderful graduation in diameter, and these gemstones have internal crystal structures reflecting light to create a soft glow within these stunning Prehnite beads.