YAG
YAG Yttrium Aluminum Garnet
- Color: Wide range of colors
- Moh’s hardness: 8.5
- Refractive index: 1.833
- Critical angle: 33°
- Specific gravity: 4.55
- Cleavage: Imperfect
- Fracture: Conchoidal
- Dispersion: Moderately high (.028)
- Heat sensitivity: Low
- Pleochroism: None
- Birefringence: None
- Crystal structure: Isometric
- Treatments: YAG is a synthetic stone.
- Cutting: Cuts similar to natural garnet.
- Polishing: Alumina or diamond (50,000 or 100,000) common polishing laps.
Categories: Mineral stubs