The Leyden and Stockholm Papyri - University of Cincinnati

THE LEYDEN & STOCKHOLM PAPYRI
46. Preparation of Lychnis
Corrode the stones beforehand as set forth above. In this manner
take archil, alkanet, and vinegar and place the stone therein as
long as desired.
According to Pliny (Natural History, XXXVII, 103) this stone was
red in color like the ruby.
47. Preparation of Beryl
Mix Indian black with resin and heat crystal. If you let it cool in
the mixture then excellent beryl comes forth from it.
48. Another (Preparation)
Make a solution from the bile of a tortoise together with the milk.
of a pregnant animal, copper, and sharp vinegar; and in this solution
beryl will come into existence from stone. Only the experts can
discover (the fraud).
49. Preparation of Jasper
Heat the stone, then corrode it in alum along with vinegar and put
it in verdigris and calves’ gall.
50. Preparation of Sunstone
Boil liquid pitch and alkanet, put the stone in it and it will thence
become sunstone; or in the juice of mulberries, or in ground kermes
with vinegar; or in Armenian blue with calves’ gall.
51. Corrosion of Crystal
Before one puts it in for coloring. Grind 1 part of quicklime and 1
part of natural sulphur. Add vinegar and put the stones in it. And in
the third place it states thus; human excrement is, as they say, garlic.
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