X a beautifully-veined semi-transparent precious stone, a variety of quartz. Its colors are delicately arranged in stripes or bands or blended in clouds. It is mentioned four times in the text of the Authorized Version, viz., in ( Exodus 28:19 ; 39:12 ; Isaiah 54:12 ; Ezekiel 27:16 ) In the two former passages; where it is represented by the Hebrew word shebo it is spoken of as forming the second stone in the third row of the high priests breastplate; in each of the two latter places the original word is cadced , by which, no doubt, is intended a different stone. Our English agate derives its name from the Achates, on the banks of which it was first found.