Sardius. (red). (Hebrew, odem). The stone which occupied the first place in the first row of the high priest's breastplate. Exodus 28:27. The sard, which is probably the stone denoted by odem, is a superior variety of agate, sometimes called camelian, and has long been a favorite stone for the engraver's art. Sardis differ in color: there is a bright-red variety, and, perhaps, the Hebrew, odem, from a root means "to be red," points to this kind.
More than 4,500 subjects and proper names are defined and analyzed with corresponding Scripture references. Bible students have used "Smith's Bible Dictionary" since its introduction in the 1880s, making it a trustworthy classic.Wikipedia
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