Credit: Robert M. Lavinsky, iRocks.com
License: CC BY-SA 3.0
Credit URL: https://commons.wikimedia.org...
Comments: Agate (Var.: Onyx), Quartz. Locality: Minas Gerais, Southeast Region, Brazil.
Credit: あおもりくま,Aomorikuma
License: CC BY-SA 4.0
Credit URL: https://commons.wikimedia.org...
Comments: Clear, White, Yellow Onyx.
Credit: Deomar Pandan, KamayoJewelry.com
License: CC BY-SA 3.0
Credit URL: https://commons.wikimedia.org...
Comments: Necklace made from polished black onyx beads and teardrop pendant
From Easton: Onyx - a hail; claw; hoof, (Heb. shoham), a precious stone adorning the breast-plate of the high priest and the shoulders of the ephod (Exodus 28:9-12, Exodus 28:20; Exodus 35:27; Job 28:16; Ezekiel 28:13). It was found in the land of Havilah (Genesis 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).