What's the difference between chalcedonic and chalcedony?
Chalcedonic
Definition:
(a.) Of or pertaining to chalcedony.
Example Sentences:
(1) In the first half of the third century B.C, two Greeks, Herophilus of Chalcedon and his younger contemporary Erasistratus of Ceos, became the first and last ancient scientists to perform systematic dissections of human cadavers.
Chalcedony
Definition:
(n.) A cryptocrystalline, translucent variety of quartz, having usually a whitish color, and a luster nearly like wax.
Example Sentences:
(1) The free silicic oxide is presented by low-temperature crystobalite and quartz, more rarely opal and chalcedony.