rubies
were equally well known, and the two were probably often confounded.
Dr. 0. C. Farrington, in his delightful book, relates as usual some
interesting superstitions regarding the spinel. In the middle ages, for
instance, it was believed that, " if one touched with this gem the four
corners of a house, orchard, or vineyard, they would be protected from
lightning, storms, and the like."