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WE will not repeat here the Nature or Colour of the Sapphire, having done it before: But we will add, that from the true Sapphire, may be ex∣tracted the three Principles, which are of infinite vertue in Medicine, whether united, or separate. To imitate this Precious Stone, with our Matter pre∣pared with Saturnus Glorificatus, and Natural Crystal,
take ten Ounces, add two Drams of the Calx of Gold, mix these Powders well together, put them in a Crucible covered with another, let them dry, then put them in a Glass-house Furnace for three Days. Moreover do all we have ordered in Chap. 116, and that Mass will be of a very fair Oriental Sapphire∣colour, which cut and polish at the Wheel.