A garnet with a spectrum of warm colors from a light yellow-green to a dark brown. Named after the East African country where it was discovered.
Formula: Ca3(Al,Fe)2(SiO4)3
Hardness: 7
Density: 3.56 – 3.64 g/cm3
Refractive Index: 1.742 – 1.793
Color: near colorless, yellowish-green, green, brown
Countries of Origin: Mali
Birthstone: January