Scapolite is a name used for a group of aluminosilicate minerals that includes meionite, marialite, and silvialite. It has a refractive index of 1.54 – 1.58 and a hardness of 5 - 6 on the Mohs scale. This beautiful piece of Scapolite from Mozambique weighs 48.50 cts measures 23x18x13mm and is eye clean.