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Gemstone : Natural Emerald
Shape : Cushion
Color : Green
Origin : Afghanistan
Treatment: Not Heated. Not Treated. Not Enhanced.
Emerald is a gemstone and a variety of the mineral beryl (Be3Al2(SiO3)6) 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 (resistance to breakage) is classified as generally poor.
Ultraviolet fluorescence: None (some fracture-f...
Mohs scale hardness: 7.5–8
Color: Green shades to colorless