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Information sur la pierre précieuse DiopsideInformación de la piedra preciosa cromodiópsido
Introduction

Chrome Diopside is a relative newcomer in the gemstone world, but has attracted increasing attention for its intense green color. It is a relatively soft stone that doesn't qualify for rings or bracelets, but it makes stunning earrings and pendants. Star diopside and diopside cat's eye are a known rarity.

Chrome Diopside Gemstone

Diopside colors
Buying Diopside
Where is Diopside found?
Common Diopside treatments
World-famous Diopside
Diopside gemology
Diopside legends & lore

Diopside colors
A intense deep green reminiscent of tsavorite garnet is the most notable color. Star diopside typically occurs in black. A violet-blue variety is known as violane.

Buying Diopside
Diopside needs special care to avoid scratching it with harder substances, since it is a relatively soft gem. It's advisable to wrap it before storage in a soft cloth to prevent the stones from rubbing against each other.

Color
With increasing size of the stone the color of the diopside green appears darker and can turn almost black. The best choice would be a medium sized stone in vivid green color. Chrome diopside has an intense green that compares favorably with tsavorite garnet and chrome tourmaline.

Lighting

Clarity
Look for flawless, eye clean gems. The star diopside variety is quite dark, with included rutile needles aligned so as to produce a four-rayed star.

Cut
Diopside comes in many shapes and forms, like facetted, emerald, oval or cabochon cut.

Diopside location and deposits
Diopside deposits are found in Austria, Finland, India, Madagascar, Myanmar, South Africa, Sri Lanka and the United States. Chrome diopside has thus far been found only in Russia. Violane is only found in Piedmont, Italy.

Common Diopside treatments
None

World-famous Diopside
As a lesser-known gemstone, diopside hasn't gained fame as of yet.

Diopside gemology
Species: Diopside
Color: Green, yellow, colorless, brown, black
Chemical composition: CaMgSi2O6, calcium magnesium silicate
Crystal system: Monoclinic; columnar crystals
Hardness: 5-6 (Mohs scale)
Specific gravity: 3.22 - 3.38
Refractive index: 1.664 - 1.730
Birefringence: +0.024 to +0.031
Color of streak: White
Absorption spectrum: 505, 493, 446; Chrome diopside: 690, 670, 655, 635, 508, 505, 490
Fluorescence: Violet, orange, yellow, green

The Diopside zodiac, myth & legend
In ancient times, some people believed green diopside had fallen from the tree of life and therefore the dead should be buried with a diopside to ensure renewal of life. In some cultures green diopside was associated with peace and tranquility and put on the forehead before rest, in order to ensure sweet dreams.

First Published: September-12-2006

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