This is a Thumbnail Size Green Emerald, Copperbelt Prov, Zambia
Dimensions: 2.6cm (1.0”) x 1.2cm (0.47”)
Weight: 6 grams = 30 carats
Emerald is a gemstone and a variety of the mineral beryl colored green by trace amounts of chromium or sometimes vanadium
Chemical formula: Be₃Al₂SiO₆
