Paraiba-gemstone

Eon blue, highly desirable variety of tourmaline that originated in Paraiba, Brazil. its interesting color is caused by inclusions of copper. Although technically the term describe only those Tourmalines from paraiba in Brazil, the gem trade now use it to describe any light to neon blue
tourmaline from any worldwide location.the person who was born in October he can use as birthstone.its have magical powers to achive your life goals .








Chemical Formula: Have many formulas

Color                    : ,Blue,Green,Red, Green, yellow, orange, brown, pink, purple, gray, black.

Hardness              : 7 - 7.5

Crystal system      : Hexagonal

Refractive index   : 1.616-1.650

SG                        : 2.9 - 3.3

Transparency        : Transparent to Opaque

Double Refraction: .018

Luster                   :  Vitreous

Cleavage              :  3,2

Mineral Class       : Tourmaline

Sources:
            Brazil.