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.