EMERALD: Emerald is the sign of spring is regarded as one of the most desirable gemstones, Gemstone Group- Beryl Chemical Composition- Beryl is a silicate of beryllium and aluminium with the formula of Be3A12(SiO3)6. The fine intense green is caused by a trace of chromium and/or vanadium replacing the aluminium in the beryl structure. Emerald […]









