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kunzite

Kunzite (spodumene)


Consumer Information
 
What color is it?: Kunzite is pink to violet/pink in color. Other colors of the spodumene group will be various colors of green which is called hiddenite.
 
What is the story behind this gemstone?: It was named after a world renowned gemologist, Mr. G. F Kunz who first found the stone in 1902. It can occur in very large crystals weighing several kilograms. It is rather soft, sort of brittle, and will lose its color in sunlight....but we will discuss that later.
 
Can I wear it everyday?: Well, sort of. Kunzite is heated to enhance the light pink colors to a darker pink. And if it is exposed to sunlight it has a strong tendency to fade. So if the question is: Can I wear it everyday? The answer is: No. But if the question is: Can I wear it every night? The answer is: Yes. Just be careful because it is sort of brittle.
 
Is it expensive?: It can be. Kunzites of deep pink color will be rather pricey. In line with a fine pink topaz.
 
Is it a birthstone?: No.
 
What do I need to know before going shopping?: Kunzite was very, very popular in the early 1980's. However, after buying a lot of the stones consumers realized that they were fading in color when worn in the bright sunlight. So the excitement sort of faded....along with the color. But if you are aware of the limitations of owning a nice kunzite they are beautiful stones.

kunzite
 
 
General Information
 
 
 
 
 
Source: Brazil, Burma, United States among others
 
Chemical: LiAl(Si2O6) lithium aluminum silicate
 
Formation: In pegmatite dikes and granite formations
 
Crystal System: Monoclinic
 
Unusual Properties: Strong Fluorescence

Gemological Information
 
RI: 1.660 - 1.676
 
Birefringence: .016
 
Optic Character: B +
 
Specific Gravity: 3.17 + -
 
Hardness: 6.5 + -
 
Transparency: TP
 
Special Identifying Properties and Tests: Strong pleochroism possible. Perfect cleavage makes faceting difficult.
 
Synthetics: None known
 
Imitations: Many possible.

For the gemological information on this gemstone we invite you to join us in the

International School of Gemology.