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sardonyx
[sahr-don-iks, sahr-dn-]
noun
a chalcedony that is used for cameos and has sard and chalcedony of another color, usually white, arranged in straight parallel bands.
sardonyx
/ ˈɑːəɪ /
noun
a variety of chalcedony with alternating reddish-brown and white parallel bands, used as a gemstone. Formula: SiO 2
51Թ History and Origins
51Թ History and Origins
Origin of sardonyx1
Example Sentences
Also on view will be the Hamilton family’s blackish-brown sardonyx bowl, believed to have been used by Charlemagne.
For example, the Treasure of Naix — eight gold necklaces accented with emerald, glass, amethyst, pearl and sardonyx — resembles pieces at Barneys and Cartier.
IV Afar There is something that seems a shore; The sky has been blown clean of clouds except to westward, And these stare hard at me, like huge sardonyx towers.
Then he answered me and said, 'These stars are of different tinctures; one is of the sapphire, the other of the sardonyx.
It is a cup 4� in. high and 51⁄8 in. in diameter, carved out of oriental sardonyx, and richly decorated with Dionysiac emblems and attributes in relief.
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When To Use
Sardonyx is an opaque (non-clear) gemstone that’s commonly reddish-brown with white layers.Sardonyx is a variety of the mineral chalcedony, a kind of quartz.The bands of sardonyx are formed by alternating layers of the minerals sard and onyx. The color of the sard portion can range from yellow-red to a reddish-brown. Because the onyx portion can be banded, it can be considered a type of agate.Sardonyx is considered a semiprecious stone, a label given to stones that hold a lesser value than those considered precious.Sardonyx is one of the birthstones for the month of August. It’s associated with the zodiac sign Leo.Sardonyx is known for its use to create carved gems known as cameos.Example: I wear this sardonyx cameo amulet because I was born in August.
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