'Onyx' definitions:

Definition of 'onyx'

noun

A chalcedony with alternating black and white bands; used in making cameos

From: GCIDE

Chalcedony \Chal*ced"o*ny\ (k[a^]l*s[e^]d"[-o]*n[y^] or k[a^]l"s[-e]*d[-o]*n[y^]; 277), n.; pl. Chalcedonies (-n[i^]z). [ L. chalcedonius, fr. Gr. CHalkhdw`n Chalcedon, a town in Asia Minor, opposite to Byzantium: cf. calc['e]doine, OE. calcidoine, casidoyne. Cf. Cassidony.] (Min.) A cryptocrystalline, translucent variety of quartz, having usually a whitish color, and a luster nearly like wax. [Written also calcedony.] [1913 Webster]
Note: When chalcedony is variegated with with spots or figures, or arranged in differently colored layers, it is called agate; and if by reason of the thickness, color, and arrangement of the layers it is suitable for being carved into cameos, it is called onyx. Chrysoprase is green chalcedony; carnelian, a flesh red, and sard, a brownish red variety. [1913 Webster]

Onyx a hail; claw; hoof, (Heb. shoham), a precious stone adorning the breast-plate of the high priest and the shoulders of the ephod (Ex. 28:9-12, 20; 35:27; Job 28:16; Ezek. 28:13). It was found in the land of Havilah (Gen. 2:12). The LXX. translates the Hebrew word by smaragdos, an emerald. Some think that the sardonyx is meant. But the onyx differs from the sardonyx in this, that while the latter has two layers (black and white) the former has three (black, white, and red).

Name :

Onyx, CA -- U.S. Census Designated Place in California

Population (2000) :

476

Housing Units (2000) :

281

Land area (2000) :

11.564076 sq. miles (29.950819 sq. km)

Water area (2000) :

0.000000 sq. miles (0.000000 sq. km)

Total area (2000) :

11.564076 sq. miles (29.950819 sq. km)

FIPS code :

53910

Located within :

California (CA), FIPS 06

Location :

35.687683 N, 118.217511 W

ZIP Codes (1990) :

93255

Note :

some ZIP codes may be omitted esp. for suburbs.