Color: Emerald Green

Moh’s Hardness: 6.5-7

Refractive Index: 1.88-1.89

Critical Angle: 32.13°

Specific Gravity: 3.77

Cleavage: Imperfect

Fracture: Subconchoidal

Heat Sensitivity: Slightly

Crystal Structure: Isometric, rhombic, dodecahedron,icositetrahedron

Treatments: Generally none