Sapphire. % at the foot of trap rocks, and accompanied by hya cinth, pyrope, and iron fand. Ufe. Sapphire and oriental ruby are, next to the diamond, mod valuable of precious ftones, and are ufed in l ^ e fined kind of jewellery. Obfervations. Werner is of opinion that fapphire and fpinelle are very nearly allied, and that in fome indances fpi- ^He pafics into fapphire. a * The oriental ruby, which is here arranged, in c °nfomiity to the method of Werner, along with the ^Pphire, appears, from the obfervations of Count de ^°urnon, to be a didind fpecies. , ^t differs from fapphire in its colour fuite, in hav- '^8 a didind foliated fradure, in being fofter and pof- e “ n g lefs fpecific gravity ; and in its geognodic cha- la der, as it occurs fometimes imbedded in corundum, ^hich is an inmate of primitive mountains, while fap- . lre a Ppears to be more a produdion of a later pe riod. , 3< 1 he violet coloured fapphire is the oriental ame- y t > the yellow, the oriental chryfolite and topaz; an d the green, the oriental emerald. N thirteenth