Prehnite Faceted Coins measure approximately 8mm to 10mm in diameter, exhibit a glass-like luster, the stones have good make showing symmetrical coin shapes, these Prehnite beads are matched on strand for quality & color, the gem bodies are a light yellowish green hue, the coins have been top drilled, and these transparent beads have internal characteristics reflecting light to create a soft glow within these Prehnite gemstones.