Cleanse the white of Egges through a spunge, as purely as may bee, then mingle with it the fairest white Talke, or Mother of Pearle, or Mercury coagulated with Tinne, and brought into an Alcool, then grinde them all together on a Marble, so that they become a thick Amalgama, which must bee dryed in the Sunne, or behind a furnace so long, untill it bee like Cheese, or a Liver.
Then of this masse make Pearles as big as thou wilt, which hang upon the bristles of a Hog, and being thus boared through, dry them as Amber, and then thou hast finished them.
If they are not beautifull enough, anoint them over with the white of an Egge, and dry them again, and they will bee most goodly pearls, in form like the naturall, but not in vertue.
In the like manner are Coralls made, with which men endeavour to deceive one the other as with Pearle. The processe is this:
How counterfeit Coralls may be made.
Take Cinnabar, grinde it on a Marble, with the white of an Egge, for the space of an houre, then dry it, as Potters doe their Earth, then make it into what forme thou pleasest: Afterwards dry them as much as may bee, and noint them over with the white of an Egge, as thou didst Pearle, and dry them by themselves again.
So thou shalt have Corall like to the naturall in form, but not in vertue.
A Golden or Silver varnish.
Thou must also know, That the white of an Egge may bee of it selfe coagulated into most cleer Vernish, in the coagulation of which Silver, or Gold may bee strewed.