Types and Composition of Tigers Eye
- Tiger iron is an altered rock composed chiefly of tigers eye, red jasper, and black hematite.
- Tigers eye is composed chiefly of silicon dioxide (SiO) and is colored mainly by iron oxide.
Sources of Tigers Eye
- Common sources of tigers eye include Australia, Burma, India, Namibia, South Africa, the United States, Brazil, Canada, China, Korea, and Spain.
- It is mined primarily in South Africa and Western Australia.
Cultural Associations of Tigers Eye
- In some parts of the world, tigers eye is believed to ward off the evil eye.
- Roman soldiers wore engraved tigers eye for protection in battle.
Cut, Treatment, and Imitation of Tigers Eye
- Tigers eye gems are usually given a cabochon cut to display their chatoyance.
- Red stones are developed through gentle heat treatments.
- Dark stones are artificially lightened using a nitric acid treatment.
- Honey-colored stones have been used to imitate cats eye chrysoberyl, but the effect is often unconvincing.
- Artificial fiber optic glass is a common imitation of tigers eye.
References
- Tigers Eye. (mindat.org)
- New interpretation of the origin of tigers-eye. (Geology)
- Listing of SG of gems and gem simulants. (Berkeley.edu)
- Mineralogical Journeys in Arizona. (Mineralogical Journeys in Arizona)
- Cats Eye or Tiger-Eye. (Mineral Resources of the United States / Department of the Interior, United States Geological Survey)
Tiger's eye Data Sources
| Reference | URL |
|---|---|
| Glossary | https://harryandcojewellery.com.au/blogs/glossary/tigers-eye |
| Wikipedia | http://en.wikipedia.org/wiki/Tiger's_eye |
| Wikidata | https://www.wikidata.org/wiki/Q430007 |
| Knowledge Graph | https://www.google.com/search?kgmid=/m/01p4py |