Emerald
| Use attributes for filter ! | |
| Color | Green |
|---|---|
| Luster | Vitreous |
| Birthstone zodiac sign | Taurus |
| Associated month | May |
| Crystal system | Hexagonal crystal system |
| Chemical formula | Be₃Al₂SiO₆ |
| Date of Reg. | |
| Date of Upd. | |
| ID | 541953 |
About Emerald
Emerald is a gemstone and a variety of the mineral beryl colored green by trace amounts of chromium and sometimes vanadium. Beryl has a hardness of 7. 5–8 on the Mohs scale. Most emeralds are highly included, so their toughness is classified as generally poor. Emerald is a cyclosilicate.