basket Your basket >
>
Your wishlist >
reset search

We offer layaway, spread payments on the piece of your dreams. Ask us for details.
Free insured shipping on all orders !!!

jewelry glossary

Antique jewelry glossary

Welcome to our extensive antique jewelry glossary with around 1,500 jewelry related entries.If you feel you are missing an explanation, feel free to let us know and we will add it.

A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z     all

Cat's eye

A general term for several varieties of gemstones that, when suitably cut en cabochon and viewed in a certain direction and light, show chatoyancy resembling a moving streak of light as seen in a cat's eye. The streak is caused by reflection from parallel layers of asbestos fibre or from minute internal canals.

The stones, which have a silky lustre, include: a variety of chrysoberyl (known as cymophane); a variety of greyish-yellow, brownish or grey-green quartz, similarly chatoyant but inferior, having a less sharp streak and lower hardness, and which, when replacing crocidolite in a stone, is known as tiger's-eye and hawk's-eye; a variety of tourmaline that has fibrous inclusions; some varieties of diopside, moonstone, andalusite, apatite, scapolite, and fibrolite (sillimanite); and some of the varieties of corundum.

All such stones are preferably designated as 'cat's-eye' accompanied by the name of the stone; the use of the term alone, without the name of a stone, should be restricted to designate a chrysoberyl. The stones must be cut with meticulous care so that the streak will cross the middle of the dome when light falls upon it vertically. The stones are used for beads or set in finger rings.

From: An Illustrated Dictionary of Jewelry, autor: Harold Newman, publishers: Thames and Hudson

Jewelry Glossary

Missing an explanation?
click here to request one

Jewelry Theme Search
Antique Jewelry Lecture
Adin Wallpapers    Help    Shipping Policy    Dealer Terms    Special Requests    Follow us on :   Twitter   Facebook   Google+   Instagram   Links
Home  |   Site Security  |   Track your Order   |   Return Policy   |   Contact Us  |   Antwerp  |   Terms And Conditions   |   Site Map  |   Blog  |   Testimonials  |   In Memoriam