'Sardius' in the Bible

and he that was sitting like in appearance to a stone of jasper and a sardius, and a rainbow round the throne like in appearance to an emerald.

the fifth, sardonyx; the sixth, sardius; the seventh, chrysolite; the eighth, beryl; the ninth, topaz; the tenth, chrysoprasus; the eleventh, jacinth; the twelfth, amethyst.