Stone type: Tsavorite Garnet 
Weight: .4 carats
Color: Green
Shape & Cut: Round
Treatment: None
Refractive Index: 1.770-1.820
Hardness: 7-7.5
Specific Gravity: 3.6-4.2
Optical properties: Singly refractive
Chemical formula: x3z2(SiO4)3