A young gemstone with a very long geological history from the African border country between Kenya and Tanzania. A vivid sparkling green and tremendous brilliance.
Formula: Ca3Al2(SiO4)3
Hardness: 7 – 7.5
Density: 3.55 – 3.75 g/cm3
Refractive Index: 1.730- 1.759
Color: green
Countries of Origin: Tanzania, Kenya
Birthstone: January