YOUR GUIDE TO RARE BEAUTY

Discover the Beauty of

Iolite

Explore the history, properties, and value of one of the world's most remarkable gemstones.

Iolite, known as the Viking’s compass, was used for navigation on the seas. Its deep blue to violet hues make it a gem of adventure and mystique.

India, Sri Lanka, Myanmar, Madagascar

Chemical Formula

Mg₂Al₄Si₅O₁₈

Luster

Vitreous (Glassy)

Refractive Index

0.02

Specific Gravity

0.08

Crystal System

Orthorhombic

Hardness

0.5

Currently priced at

$20 - $200+

a Carat

Gemstones and minerals are classified into seven primary crystal systems based on their atomic structure.

The refractive index (RI) of a material measure how much light is bent, or refracted, when entering the material from another medium.

The specific gravity (SG) of a substance is a measure of its density compared to water.

A chemical formula shows the types and quantities of atoms in a molecule.