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 50.39 cts measures 23x21x15mm and has some small viels.