Click Here for the Table of Contents! Gemmological References
Information on Gems Ask a Gemologist! List of Author's Credentials

Gemstone Crystal System Density Hardness Refractive index Treatments
Azurite monoclinic 3.7-3.8 3.5-4.0 1.730-1.838 none

Color:
Blue (in the beginning)

Clarity: Type I
Optic Character:
DR Biaxial Positive; AGG
Cause of Color: Copper
Fluorescence: Inert
Fracture : Concoidal to uneven
Luster : Vitreous to resinous
Cleavage :
2 directions:perfect to distinct
Durability: Poor

Characteristics for Identification:
Botryoidal structure; Light blue streak

Locations:
Associated with copper deposits world wide.

Azurite

Cu2(CO)3 OH2

Azurite forms directly from the oxidation of copper ore. Azurite (blue) and malachite (green) are often found together because azurite tends to alter into malachite. Because of azurite's intense blue color, it was once used as a pigment for oil paints. Unfortunately, time has caused those originally blue skies and bodies of water to go decidedly green. In ancient Egypt, azurite paint was used by temple priests to paint and decorate the Third Eye on their foreheads believing that it increased their powers. The ancient Chinese revered azurite as the Stone of Heaven, able to open spiritual doorways.

Azurite may be confused with:
Benitoite
Lapis Lazuli
Azurmalachite

The following books are my recommendations for further study.
They are some of the best available.
If you would like a larger selection, please visit the Book Shop.


Gemstones: Symbols of Beauty and Power
by Eduard J. Gubelin, Franz-Zaver Erni


The Curious Lore of Precious Stones:

by George Frederick Kunz


Gemstone Buying Guide: A Guide to Buying

by Renee Newman


Gems: Their Sources, Descriptions and Identification...
by Robert Webster, Peter G. Read (Editor)

Website designed and Maintained by galleryVoltaire