sardonyx

The fifth, sardonyx; the sixth, sardius; the seventh, chrysolyte; the eighth, beryl; the ninth, a topaz; the tenth, a chrysoprasus; the eleventh, a jacinth; the twelfth, an amethys…

The large chalice at right is carved from a single chunk of sardonyx, a kind of onyx. Its gilded rim and base are decorated with tiny enamels depicting a host of popular saints, in…