The Emerald
The emerald is a precious stone that belongs to the beryllium variety, containing chromium and vanadium which gives the emeralds the beautiful color green. Its has a hardness of 7.5 and 8 according to the Mohs scale.
Inglés
The emerald is a precious stone that belongs to the beryllium variety, containing chromium and vanadium which gives the emeralds the beautiful color green. Its has a hardness of 7.5 and 8 according to the Mohs scale.