Superstitions of Red Coral

An ominous character was attributed to the red coral, especially the more highly colored varieties. If worn so that the substance came in direct contact with the skin, it was asserted that the color would pale, the coral also losing its brightness if the wearer became ill, or even if he were only threatened with severe illness. The same effect was said to be induced if some deadly poison had been taken. Cardano writes that he more than once observed this phenomenon, and he thinks that in these cases, where the wearer was not yet attacked by disease, its threatening "vapor," though not strong enough to provoke decided symptoms in the human body, was sufficiently powerful to offset the more delicate and subtle essence of the mineral substance. Of course, for us the mineral would be much less sensitive than flesh and blood, but the sixteenth century writers, and to a still greater degree those of an earlier time, attributed to stones not only life in a general way, but old age, disease, and death, in a very positive sense. (Cardani, "De subtilitate," Basileae, 1554.)