Precious Emerald
Are Emerald a Gemstone and what it really explains
Emerald is a precious gemstone and a description of the mineral beryl (Be3Al2(SiO3)6) colored green by evidence numbers of chromium and sometimes vanadium. Beryl has a hardness of 7.5–8 on the Mohs scale. Most emeralds are Mostly included, so their toughness (opposition to breakage) are classified as generally poor.