| Name | Emerald |
| Class | Semi-precious |
| Category | Beryl |
| Crystal system | Hexagonal |
| Chemical composition | Aluminum and beryllium silicate (Be₃Al₂Si₆O₁₈) with traces of chromium and/or vanadium |
| Hardness (Mohs scale) | 7.5 to 8 |
| Transparency | Translucent to transparent |
| Geographical origin | Colombia, Brazil, Zambia, Afghanistan, Russia, Madagascar |






















































































































































































































