Cheseph, Silver, in Metallic things Rabbi Mordechai writes thus:
Let the Red Minera of Silver be taken, let it be ground very
finely;
add an Ounce and a half of the Calx of Luna to six Ounces of it. Let it
be placed in a Sand bath in a Vial sealed. Let there be given a small
Fire
for the first Eight Days, lest its Radical Humidity be burnt up. The
second
Week, one degree stronger; and the third yet stronger; and on the
fourth,
that the sand may not be red hot, but so that when Water is dropped
upon
it, it may hiss. Then on the top of the Glass, thou shalt have a White
Matter, which is the Materia Prima or tinging Arsenic,
being
the living Water of Metals, which all Philosophers call dry Water, or
their
Vinegar. Let this be purified thus: Take of the Crystalline Matter
sublimed;
Let it be ground upon a Marble, with an equal part of Calx of Luna, and
let it be put into a Vial sealed, and set in a Sand bath again, the
first
two Hours with a gentle Fire, the second with a stronger, and the third
with one yet more violent, and increased till the Sand will hiss, and
our
Arsenic will be sublimed again, the starry Beams being sent forth. And
since a quantity of this is required thou shalt augment it thus:
Take six Ounces of this, and an Ounce and a half of the most pure
Filings
of Luna, and make an Amalgama, and let them be digested in a Vial in
hot
Ashes, till all the Luna be dissolved, and converted into Arsenical
Water.
Take an Ounce and a half of this Spirit, and place it in a closed
Vial:
Let this be put into hot Ashes, and it will ascend and descend; which
heat
continue, till it leaves off Sweating, and it lies at the bottom the
Colour
of Ashes. Thus the matter is dissolved and putrefied.
Take one part of this Cinereous Matter, and half a part of the
aforesaid
Water, let them be mixed and sweat in a Glass, as before, which will
happen
in about Eight Days; when the Cinereous Earth shall begin to wax white,
take it out, and let it be imbibed with five Washings of its Lunar
Water,
and digested as before. Let it be imbibed the third time, with five
Ounces
of the same Water, and coagulated as before, for Eight Days. The fourth
Imbibition requires seven Ounces of the Lunar Water. And the Sweating
being
ended, this Preparation is finished.
Now for the White Work. Take 21 Drachms of this White Earth, 14
Drachms
of the Lunar Water, 10 Drachms of Calx of most pure Luna; mix them upon
a marble slab and commit them to Coagulation, till they grow hard;
imbibe
it with three parts of its own Water, till it hath drank up this
Portion;
and repeat that so often, till it flow on a Copper Plate, made red hot,
without Smoke; and then thou shalt have the Tincture for the White,
which
thou mayest increase by the means aforesaid.
For the Red, you must use Calx of Sol, and a stronger Fire; and
'tis
a work of about four months. Thus this author.
[...]
Many seek other Sulphurs, and he that hath entered the "House of
the
Paths" shall understand them, Proverbs, 8: 2. For the Sulphurs
of
Gold and Iron, the Extraction whereof is taught by many, and is easy;
also
of Gold, Iron and Brass; also of Gold, Iron, Copper and Antimony, which
are gathered together after Fulmination by Vinegar, out of the
lixivium,
which are changed into a Red Oil, with a moist Hydrargyrum, --- do
tinge
Silver. For from Proverbs, 21: 20, we know there is a Treasure
to
be desired and also an Oil to be found in the dwelling of a Man of
Wisdom.