Onyx jewelry is rich-looking and affordable. This black stone is often mixed with pearls to create elegant jewelry.
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Onyx, sard, and sardonyx are all varieties of chalcedony (microcrystaline quartz).
Onyx comes in brown, white, grey, and black. Sard is a reddish-brown variety. Sardonyx is a blend of sard and onyx with the red bands of sard and the white bands of onyx. Onyx, Sard and Sardonyx all have a hardness rating of 7.
Onyx is very similar to agate. Onyx has straight bands of brown, white or black; agate has curved lines of many colors.
Since ancient times, Onyx has been dyed to improve it's color.
Often treated agate is sold as Black Onyx.
Onyx jewelry may chip or scratch rather easily.
Onyx is found worldwide.
Books with Onyx in title -- but are not about the stone:
- The Onyx (G K Large Print Book) - by Jacqueline Briskin
- Gemstone Buying Guide: A Guide to Buying - by Renee Newman
Very nice gemstone identification book.
- The Curious Lore of Precious Stones - by George Frederick Kunz
The definitive book on fascinating, traditional gem lore. Very practical.
- Gemstones (Smithsonian Handbooks) - by Cally Hall, Harry Taylor (Photographer)
A field guide to gemstones. Nice pictures and good, brief, well-written descriptions of over 130 varieties of gemstones.
- Gemisphere Luminary - by Michael Katz
This is my favorite reference for the mystical properties of gemstones.
- Gemstones of the World - by Walter Schumann
A very well written source on gemstones with great descriptions and photographs
Thanks to Amazon.com for fast, efficient, and reliable book processing
- February Birthstone: Other Brthstone [found on net]
- December Birthstone: Mystical Birthstone
- Leo (Jul 23-Aug 22): Birthstone/Lucky Charm
Anniversary Gemstone for Onyx
Onyx is the anniversary gemstone for the 7th year of marriage.
Black Onyx is the anniversary gemstone for the 10th year of marriage.
Onyx Mystical Properties
Black Onyx is used to help one change habits.
Mexican Onyx (white and brown chalcedony) is said to help one sleep.
Sard (reddish brown chalcedony) was regarded as a protection against incantations and sorcery. It was also believed to sharpen the wits of the wearer.
Black as the night
You can see forever
Will it change my sight?
Never say never
What did the Onyx say to the diamond?
How can you be so clear?