Green tourmaline, often referred to as Verdelite, is a variety of tourmaline known for its diverse range of green hues. The color is typically attributed to trace amounts of chromium and vanadium in the crystal structure. These green tourmalines can range from pale mint green to deep, forest green, with emerald green being highly prized. While green tourmaline is relatively common, the deeper, more saturated green colors, particularly those from the International Gem Society, are sought after.

Key characteristics of green tourmaline:

• Color: Ranging from pale mint to deep forest green, with emerald green being highly prized.

• Cause of color: Typically due to chromium and vanadium.

• Rarity: While green tourmaline is more common than some other tourmaline varieties, finer, more saturated green stones, especially larger ones, are more rare.

• Other names: Verdelite is a common trade name for green tourmaline.