- Color: color change, from blue, green or greenish yellow to purple, red, brown or orange-yellow.
- Hardness: 7
- Refractive index: 1.89
- Density: 3.85 - 4.00
- Chemical composition: nesosilicate
- Crystal structure: isometric
- Origins: Madagascar.
This is a rare variety of garnet. Prices for garnets with color changing characteristics increase rapidly with weight, and clean specimens over 7 ct. are extremely rare and expensive.