The Sardius

Saint Hildegarde poetically evokes its formation: “The sardine develops in the afternoon, when the water rises, when, in autumn, the leaves of the trees have fallen, that is to say when the sun is very hot and the air very cold, and the sun warms it with its glow”. (Physica ch VII)

In order to choose the right stone, you must first consider the use you are going to make of it. For Saint Hildegarde, sardine is used very little in direct contact with the skin, and is more often applied through a cloth. For a stone that has to be soaked in wine or rubbed, a polished stone is preferable. For other uses the polished stone or pendant may be suitable.