
1) Agate variety 2) All We Got Iz Us rappers 3) Ancient birthstone for July 4) Ancient July birthstone 5) Banded agate 6) Banded cameo stone 7) Banded chalcedony 8) Banded gem 9) Banded gemstone 10) Banded mineral 11) Banded quartz 12) Banded quartz stone 13) Banded stone 14) Banded variety of chalcedony
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https://www.crosswordclues.com/clue/onyx

1) Gem 2) Sardonyx
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https://www.crosswordclues.com/clue/onyx

• (n.) Chalcedony in parallel layers of different shades of color. It is used for making cameos, the figure being cut in one layer with the next as a ground.
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http://thinkexist.com/dictionary/meaning/onyx/

striped, semiprecious variety of the silica mineral agate with white and black alternating bands. Onyx is used in carved cameos and intaglios ... [2 related articles]
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http://www.britannica.com/eb/a-z/o/21

A sample of brown onyx from Iran A variety of chalcedony with variegated bands, straight rather than curved as in agate. Sardonyx has white and brown bands; carnelian onyx white and red. Onyx is used as a gem stone, especially for cameos and intaglios.
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http://www.daviddarling.info/encyclopedia/O/onyx.html

<chemical> Chalcedony in parallel layers of different shades of colour. It is used for making cameos, the figure being cut in one layer with the next as a ground. Onyx marble, a banded variety of marble or calcium carbonate resembling onyx. It is obtained from Mexico. ... Origin: L, fr. Gr. A claw, finger nail, a veined gem. See Nail, and cf....
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http://www.encyclo.co.uk/local/20973

(on´iks) nail (def. 2).
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http://www.encyclo.co.uk/local/21001

A variety of quartz in crystalline form of calcium carbonate. It is characterized by a structure of parallel bands each differing in color or in the degree of translucency. Considered to be a marble because it can take a polish.
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http://www.encyclo.co.uk/local/22192
O'nyx noun [ Latin , from Greek ... a claw, finger nail, a veined gem. See
Nail , and confer
Onycha .]
(Min.) Chalcedony in parallel layers of different shades of color. It is used for making cameos, the figure being cut in one layer with the next as a ground.
Onyx marble , ...
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http://www.encyclo.co.uk/webster/O/21

Type: Term Pronunciation: on′iks Synonyms: nail1
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http://www.medilexicon.com/medicaldictionary.php?t=62672

Onyx (named on account it resembles the colour of a fingernail) is a variety of chalcedony, similar to agate but featuring straight, rather than curved bands.
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http://www.probertencyclopaedia.com/browse/HO.HTM

HMS Onyx was a British Algerine Class minesweeper of 950 tons displacement launched in 1942. HMS Onyx was powered by two 3-drum type boilers providing a top speed of 16.5 knots. She carried a peacetime complement of 85 and between 104 and 138 in war. For defence she was armed with one 4-inch dual-purpose gun; four 40 mm anti-aircraft guns and two d...
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http://www.probertencyclopaedia.com/browse/RO.HTM

A semiprecious stone that is a form of agate, usually with parallel bands of black and white
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http://www.saffronart.com/sitepages/jewelry/glossary.aspx

A variety of quartz in crystalline form of calcium carbonate. It is characterized by a structure of parallel brands each differing in color or in the degree of translucency. Considering to be a marble because it can take a polished.
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http://www.selectstone.com/architectural-resources/stone-glossary/

[
n] - a chalcedony with alternating black and white bands
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http://www.webdictionary.co.uk/definition.php?query=onyx
noun a chalcedony with alternating black and white bands; used in making cameos
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https://www.encyclo.co.uk/local/20974

Semi-precious variety of chalcedonic silica (SiO
2) in which the crystals are too fine to be detected under a microscope, a state known as cryptocrystalline. It has straight parallel bands of different colours: milk-white, black, and red. Sardonyx, an onyx variety, has layers of brown or red carnelian alternating w...
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https://www.encyclo.co.uk/local/21221

So called in trade, is a crystalline form, commonly microcrystalline, of calcium carbonate deposited usually from cold water solutions. It is generally translucent and shows a characteristic layering. The term onyx marble is technically a misnomer, as true onyx is a variety of cryptocrystalline fibrous silica (chalcedony), and is closely related in...
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https://www.encyclo.co.uk/local/22191

Onyx is a well-known variety of chalcedony which can have a variety of colours from white up to the most valuable pure black which is also the most valuable.
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https://www.encyclo.co.uk/local/22607

Onyx is an English name for boys and girls. The meaning is `beautiful mineral` The name Onyx is most commonly given to American boys. In the Netherlands and England and Wales it is (almost) solely given to boys In Scotland it is (almost) solely given to girls
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https://www.pregnology.com/names/mixed/Onyx
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