These Stones that suffer themselves to be melted, with the Addition of Alkalies, may also, with Lead-ashes, be reduced to transparent Glass. Whereas precious Stones, viz. Diamonds, Rubies, Saphirs, Jacinths, Granates, &c. are of a quite different Nature, which neither by Alkalies, nor Lead, can be run down into Glass: Wherefore also none have been found hitherto, that have been able from them to prepare any good Medicine, as not yielding to the most Corrosive Waters whatsoever.
N. B. And though indeed, I know a way to dissolve them without any Corrosive, yet do not I think it proper, to Communicate the same in this publick manner.
There is another sort of Stones, which are commonly found in Rich and fat Earth, and sometimes also in Rivers or Brooks, such as Lapis Judaicus, Lyncis and others, which being not very hard, may be dissolved in good Spirit of Salt, which Solutions are by some of our common Chymists used against the Stone, but without any good Success, forasmuch as the Body of the Stone is not at all meliorated by being dissolved in Spirit of Salt, but rather made worse; because by this means, there is no Separation of the pure from the impure. But if any Man will take the pains to reduce these Stones into Essences, in the way before specified, he will find them much more available in all sorts of Tartarous Distempers.
There are also several kinds of Lime-stone, which cannot be melted with Addition of Alkalies, or the Ashes of Lead, but by a strong Fire are burnt into Lime. Amongst which Lime-Stones, we may reckon the Ludus of Van Helmont, which like other Limestones, may be sublimed with our strong ♓, and afterwards reduced into a Liquor, of which I have treated elsewhere, and particularly in the Seventh Part of my Pharmacopœa Spagyrica. Out of these Stones, after they have been first burnt into Lime, a most excellent Medicine may be prepared against all kinds of the Gout: Basil Valentine assuring us, that he with Essence of quick Lime, cured the Chancellor of the Emperour of Germany of the Gout: Which we may the rather believe, because Basil Valentine knew the way of separating the ☿ from the Spirit of Wine, by enkindling it; and hath also described an instrument of Copper, for performing that Operation: And knowing all this, he could not be unacquainted, that the Essence of Quick-lime, being united with Spirit of Wine, and afterwards meliorated, and putrified by burning it away, was separable from it, which he having reduced to Practice, obtained this excellent Medicine for curing of the Gout.
We are further to know, that there be other, and better Stones, to prepare an universal Medicine against the Gout and Stone, by means of our Alcohol vini, after they have been first burnt into Lime, viz. Oyster shells, which, being burnt afford a Lime that is very Caustick; and of a like Nature are all Sea-productions, viz. the Stones that are found in Spunges, all sorts of Coral, Pearl, and Mother of Pearl, all which may be reduced by Fire, into a Lime of great and excellent use.
But above all other Stones, I esteem those that are found in Beasts, Birds, Fishes or Man, which being reduced into a Calx, and their Essences extracted with our Alcohol Vini, may then be brought into a pleasant Liquor of great Use.
Amongst Fishes, the best Stones are found in Haddocks and Whitings, Crabs Eyes also are very good, but must be calcined before they can be of any good use in Physick; for without that, they are more proper to generate the Stone, than to expel it.
Having thus declared, how, from some Stones, good Medicaments may be prepared against the Gout and Stone both of the Bladder and Kidney; we will next shew, what kind of Stones are proper to be extracted with our Alcohol Vini, in order to the obtaining of true Tinctures for Men and Metals. For all Stones that have good fixt colours, are not therefore fit to have their Tinctures extracted; because some of the Precious Stones are too costly, though we should only make use of their Fragments. Some will not submit to any Operation, viz. Granates, Saphires, Rubies, Jacinths, Emralds, Turkoises, &c. though they abound with much fixt Tincture; whereas all those Stones which are high of colour, and suffer themselves to be dissolved, are proper for this work, because without preceding Solution, it is impossible to extract the Tincture from hard and compact Bodies: Wherefore we must make choice of Stones that are soluble, and abound with fixt Tincture, viz. Green and Red Jasper Stones, Lapis Lazuli, and the Black Magnesia which contain abundance of Solar Tincture. All Stones likewise that are high coloured, and break smooth like Glass, whether found on Mountains or in Brooks, are good for this purpose.
It was because of this Solar Tincture abounding in the Jasper Stone, that the Ancients preferr’d it before ☉, as containing a most high and excellent Tincture. A very rich Tincture may also be extracted from the Lapis Lazuli; and from the Black Magnesia, (which is not costly) a richer. Let us therefore take this despised Stone in hand, and see how easily its Tincture, by means of our Alcohol Vini may be extracted, and what uses it serves for, as well in Physick as Alchimy.