Diopside - Black Star

Description

It belongs to the group of PYROXENES, inosilicates of iron, magnesium and calcium

It is the dark mass variety of DIOPSIDE which, when cut with a curved surface, presents an asterism with four rays due to the presence of needle-shaped inclusions

Refractive indices: 1.66 - 1.76 ;

Weight 6.96 Kt

Diameter: 11.00 mm

Thickness: 5.90 mm

Color: black with vitreous luster and clearly visible star

Treatments: none

Origin: India