9870. A cyanus, an agate, and an amethyst. That this signifies the spiritual love of good, is evident in like manner from their color; for a blue color that is derived from white signifies spiritual good, or what is the same, the spiritual love of good (of which above, n. 9868). The spiritual love of good is charity toward the neighbor, and the spiritual love of truth is faith from charity; of that good and this truth the second heaven consists; its internal being the good of charity, and its external the good of faith. That the cyanus, as well as the amethyst, is of a blue color, is known; that the agate is so likewise, is not so well known, for in the original tongue it is not known of what species this stone is, whether an agate, a turquoise, or some other stone.