Black Onyx

Onyx is a banded variety of the oxide mineral chalcedony. Agate and onyx are both varieties of layered chalcedony that differ only in the form of the bands: agate has curved bands and onyx has parallel bands. The colors of its bands range from white to almost every color (save some shades, such as purple or blue). Commonly, specimens of onyx contain bands of black and/or white.

Sardonyx is a variant in which the colored bands are sard (shades of red) rather than black. Black onyx is perhaps the most famous variety, but is not as common as onyx with colored bands. Artificial treatments have been used since ancient times to produce both the black color in "black onyx" and the reds and yellows in sardonyx. Most "black onyx" on the market is artificially colored.

Onyx is a gemstone found in various regions of the world including Yemen, Uruguay, Argentina, Australia, Brazil, Canada, China, Czech Republic, Germany, India, Indonesia, Pakistan, Madagascar, Latin America, the UK, and various states in the US.

The ancient Romans entered battle carrying amulets of sardonyx engraved with Mars, the god of war. This was believed to bestow courage in battle. In Renaissance Europe, wearing sardonyx was believed to bestow eloquence. A traditional Persian belief is that it helped with epilepsy. Sardonyx was traditionally used by English midwives to ease childbirth by laying it between the breasts of the mother.

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(BO-003) Black Onyx 10mm Faceted Rondells

$30.00 - $30.00

$30.00

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$30.00

in stock

Approximately 16 inches long

$30.00 - $30.00

$30.00

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$30.00

(BO-006) 14mm Black Onyx Roundels

$24.00 - $24.00

$24.00

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$24.00

Only 2 left!

15 inch strand of beautiful black onyx beads.

$24.00 - $24.00

$24.00

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$24.00

(BO-007) 11mm Faceted Black Onyx Roundelles

$60.00 - $60.00

$60.00

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$60.00

Only 2 left!

15 inch strand of beautiful black onyx beads.

$60.00 - $60.00

$60.00

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$60.00

(BO-008) Graduated Faceted Black Onyx Roundelles

$45.00 - $45.00

$45.00

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$45.00

Only 1 left!

15 inch strand of beautiful black onyx beads.

$45.00 - $45.00

$45.00

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$45.00

(BO-016) 18x18x7mm Faceted Black Onyx Squares

$75.00 - $75.00

$75.00

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$75.00

Only 1 left!

Approximately a 16 inch strand of beautiful black onyx beads. These are AAA quality with an unusual dimensional facet and measure 18 x 18 x 7mm.

$75.00 - $75.00

$75.00

$75.00 - $75.00

$75.00

(BO-017) 26x37mm Faceted Black Onyx Squares

$45.00 - $45.00

$45.00

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$45.00

Only 1 left!

Approximately a 15 inch strand of beautiful black onyx beads.

$45.00 - $45.00

$45.00

$45.00 - $45.00

$45.00

(blackonyx001) 8mm Round Black Onyx - Scottsdale Bead Supply

(BO-021) 8mm Round Black Onyx

$12.00 - $12.00

$12.00

$12.00 - $12.00

$12.00

in stock

8mm Black Onyx beads on approximately a 16" strand Elevate your projects with our (bom021) 8mm Round Black Onyx! Made with genuine 8mm round black ...

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$12.00 - $12.00

$12.00

$12.00 - $12.00

$12.00

(BO-024) 15 x 20mm Faceted Black Onyx Rectangles

$60.00 - $60.00

$60.00

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$60.00

Only 1 left!

Measures 16 inches long

$60.00 - $60.00

$60.00

$60.00 - $60.00

$60.00

(BO-025) 4mm Faceted Black Onyx

$15.00 - $15.00

$15.00

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$15.00

in stock

A beautiful strand of black onyx. The bead strand is approximately 15.5 inches long.

$15.00 - $15.00

$15.00

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$15.00

(BO-026) 6mm Black Onyx

$9.00 - $9.00

$9.00

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$9.00

in stock

A beautiful strand of black onyx. The bead strand is approximately 15.5 inches long.

$9.00 - $9.00

$9.00

$9.00 - $9.00

$9.00

(BO-027) 3mm Black Onyx

$9.00 - $9.00

$9.00

$9.00 - $9.00

$9.00

Only 3 left!

A beautiful strand of black onyx. The bead strand is approximately 15.5 inches long.

$9.00 - $9.00

$9.00

$9.00 - $9.00

$9.00

(BO-028) 12mm Faceted Black Onyx Beads

$24.00 - $24.00

$24.00

$24.00 - $24.00

$24.00

Only 1 left!

A beautiful strand of black onyx. The bead strand is approximately 15.5 inches long.

$24.00 - $24.00

$24.00

$24.00 - $24.00

$24.00

(BO-030) Black Onyx 12mm Faceted Friendship

$120.00 - $120.00

$120.00

$120.00 - $120.00

$120.00

Only 4 left!

12mm black onyx matte friendship beads with polished faceted sides. They fit well together and create a unique look.

$120.00 - $120.00

$120.00

$120.00 - $120.00

$120.00

(BO-031) 14x40mm Black Onyx Teardrop Shape

$15.00 - $15.00

$15.00

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$15.00

in stock

14x40mm Black Agate Teardrop shape, 16" Strand

$15.00 - $15.00

$15.00

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$15.00

(BO-032) 4mm Black Onyx

$6.00 - $6.00

$6.00

$6.00 - $6.00

$6.00

in stock

A beautiful strand of black onyx. The bead strand is approximately 15.5 inches long.

$6.00 - $6.00

$6.00

$6.00 - $6.00

$6.00

(BO-033) 15mm Black Onyx Hexagon

$60.00 - $60.00

$60.00

$60.00 - $60.00

$60.00

Only 2 left!

A beautiful strand of black onyx. The bead strand is approximately 15.5 inches long.

$60.00 - $60.00

$60.00

$60.00 - $60.00

$60.00

(BO-034) 10mm Black Onyx Beads

$18.00 - $18.00

$18.00

$18.00 - $18.00

$18.00

in stock

A beautiful strand of black onyx. The bead strand is approximately 15.5 inches long.

$18.00 - $18.00

$18.00

$18.00 - $18.00

$18.00

$75.00 - $75.00

$75.00

$75.00 - $75.00

$75.00

Only 1 left!

These 12mm round black onyx with a finish work well for men's jewelry or a more subdued look. Black Onyx is a protection stone that absorbs and tra...

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$75.00 - $75.00

$75.00

$75.00 - $75.00

$75.00