AMETHYST

אחלמה , Exod. xxviii, 19; and xxix, 12; and once in the New Testament, Rev. XXI, 20, ἀμέθυϛος. A transparent gem, of a colour which seems composed of a strong blue and deep red; and, according as either prevails, affords different tinges of purple, sometimes approaching to violet, and sometimes even fading to a rose colour. The stone called amethyst by the ancients was evidently the same with that now generally known by this name; which is far from being the case with regard to some other gems. The oriental is the hardest, scarcest, and most valuable. It was the ninth stone in the pectoral of the high priest, and is mentioned as the twelfth in the foundations of the New Jerusalem.