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Gemstone Crystal System Density Hardness Refractive index Treatments
Tiger-eye microcrystalline 2.64-2.71 7.0 1.540-1.550 Bleaching for
"Honey Tigereye"

Tigereye rough and cabbed

Color:
Honey brown, reddish browns and bluish brown

Durability:
Excellent

Localities:
Africa predominately, but relatively common throughout the world


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Tiger-eye

Tiger-eye is a chatoyant (cats' eye effect) variety of microcystalline quartz, that has replaced the asbestos mineral crocidolite. The fibrous nature of the replaced crocidolite is what gives tiger-eye its phenomenal quality. Fortunately, it is quite abundant, therefore reasonably priced. It has been claimed that tiger-eye has the ability to improve one's eyesight and insight; meditating on tiger-eye in sunlight can enable one to look clearly into the past and the future.

 

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)
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