YOUR GUIDE TO RARE BEAUTY

Discover the Beauty of

Tourmaline

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

History

Tourmaline, prized for its vibrant rainbow of colors, was first discovered in Sri Lanka. Its versatility and modern appeal make it a favorite for unique, colorful jewelry designs.

Origin

Brazil, Afghanistan, Madagascar, USA

Chemical Formula

(Na,Ca)(Al,Fe,Li,Mg,Mn)₃Al₆(BO₃)₃Si₆O₁₈(OH,F)₄

Luster

Vitreous (Glassy)

Refractive Index

1.61

Specific Gravity

Crystal System

Trigonal (Rhombohedral)

Hardness

7.5

Currently priced at

$20 - $10,000+ per carat

a Carat

Help Guide

Crystal System

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

Refractive Index

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

Specific Gravity

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

Chemical Formula

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

Discover the Beauty of

Tourmaline

History

Origin

Help Guide

Crystal System

Refractive Index

Specific Gravity

Chemical Formula

View More

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