And I remember, that a person of Great Credit, and well acquainted with the wayes of making Vitriol, affirm’d to me, that he had observ’d, that a kind of mineral which abounds in that Salt, being kept within Doors and not expos’d (as is usual) to the free Air and Rains, did of it self in no very long time turn into Vitriol, not only in the outward or superficial, but even in the internal and most Central parts.
And I also remember, that I met with a certain kind of Merkasite that lay together in great Quantities under ground, which did, even in my chamber, in so few hours begin of it self to turne into Vitriol, that we need not distrust the newly recited narrative. But to return to what I was saying of Nitre; as Nature made this Salt-Petre out of the once almost and inodorous Earth it was bred in, and did not find a very stinking and corrosive Acid Liquor, and a sharp Alcalyzate Salt to compound it of, though these be the Bodies into which the Fire dissolves it; so it were not necessary that Nature should make up all Metals and other Minerals of Pre-existent Salt, and Sulphur, and Mercury, though such Bodies might by Fire be obtained from it. Which one consideration duly weigh’d is very considerable in the present controversy: And to this agree well the Relations of our two German Chymists; for besides that it cannot be convincingly prov’d, it is not so much as likely that so languid and moderate a heat as that within the Mines, should carry up to so great a [heat], though in the forme of fumes, Salt, Sulphur and Mercury; since we find in our Distillations, that it requires a considerable Degree of Fire to raise so much as to the height of one foot not only Salt, but even Mercury it self, in close Vessels. And if it be objected, that it seems by the stink that is sometimes observ’d when Lightening falls down here below, that sulphureous steams may ascend very high without any extraordinary Degree of heat; It may be answer’d, among other things, that the Sulphur of Silver is by Chymists said to be a fixt Sulphur, though not altogether so well Digested as that of Gold.
But, proceeds Carneades, If it had not been to afford You some hints concerning the Origine of Metals, I need not have deduc’d any thing from these Observations; It not being necessary to the Validity of my Argument that my Deductions from them should be irrefragable, because my Adversaries the Aristotelians and Vulgar Chymists do not, I presume, know any better then I, a priori, of what ingredients Nature compounds Metals and Minerals. For their Argument to prove that those Bodies are made up of such Principles, is drawn a posteriori; I mean from this, that upon the Analysis of Mineral bodies they are resolv’d into those differing substances. That we may therefore examine this Argument, Let us proceed to consider what can be alledg’d in behalf of the Elements from the Resolutions of Bodies by the fire; which you remember was the second Tophick whence I told you the Arguments of my Adversaries were desum’d.
And that I may first dispatch what I have to say concerning Minerals, I will begin the remaining part of my discourse with considering how the fire divides them.
And first, I have partly noted above, that though Chymists pretend from some to draw salt, from others running Mercury, and from others a Sulphur; Yet they have not hitherto taught us by any way in [us] among them to separate any one principle, whether Salt, Sulphur, or Mercury, from all sorts of Minerals without exception. And thence I may be allow’d to conclude that there is not any of the Elements that is an Ingredient of all Bodies, since there are some of which it is not so.
In the next place, supposing that either Sulphur or Mercury were obtainable from all sorts of Minerals. Yet still this Sulphur or Mercury would be but a compounded, not an Elementary body, as I told you already on another occasion. And certainly he that takes notice of the wonderful Operations of Quicksilver, whether it be common, or drawn from Mineral Bodies, can scarce be so inconsiderate as to think it of the very same nature with that immature and fugitive substance which in Vegetables and Animals Chymists have been pleas’d to call their Mercury. So that when Mercury is got by the help of the fire out of a metal or other Mineral Body, if we will not suppose that it was not pre-existent in it, but produc’d by the action of the fire upon the Concrete, we may at least suppose this Quicksilver to have been a perfect Body of its own kind (though perhaps lesse heterogeneous then more secundary mixts) which happen’d to be mingl’d per minima, and coagulated with the other substances, whereof the Metal or Mineral consisted. As may be exemplyfied partly by Native Vermillion wherein the Quicksilver and Sulphur being exquisitely blended both with one another, and that other course Mineral stuff (what ever it be) that harbours them, make up a red body differing enough from both; and yet from which part of the Quicksilver, and of the Sulphur, may be easily enough obtain’d; Partly by those Mines wherein nature has so curiously incorporated Silver with Lead, that ’tis extreamly difficult, and yet possible, to separate the former out of the [Latter.] And partly too by native Vitriol, wherein the Metalline Corpuscles are by skill and industry separable from the saline ones, though they be so con-coagulated with them, that the whole Concrete is reckon’d among Salts.
And here I further observe, that I never could see any Earth or Water, properly so call’d, separated from either Gold or Silver (to name now no other Metalline Bodies) and therefore to retort the argument upon my Adversaries, I may conclude, that since there are some bodies in which, for ought appears, there is neither Earth nor [Water.] I may be allow’d to conclude that neither of those two is an Universal Ingredient of all those Bodies that are counted perfectly mixt, which I desire you would remember against Anon.
It may indeed be objected, that the reason why from Gold or Silver we cannot separate any moisture, is, because that when it is melted out of the Oare, the vehement Fire requisite to its Fusion forc’d away all the aqueous and fugitive moisture; and the like fire may do from the materials of Glass. To which I shall Answer, that I Remember I read not long since in the Learned Josephus Acosta,Acosta Natural and Moral history of the Indies, L. 3. c. 5, p. 212. who relates it upon his own observation; that in America, (where he long lived) there is a kind of Silver which the Indians call Papas, and sometimes (sayes he) they find pieces very fine and pure like to small round roots, the which is rare in that metal, but usuall in Gold; Concerning which metal he tells us, that besides this they find some which they call Gold in grains, which he tells us are small morsels of Gold that they find whole without mixture of any other metal, which hath no need of melting or Refining in the fire.
I remember that a very skilful and credible person affirmed to me, that being in the Hungarian mines he had the good fortune to see a mineral that was there digg’d up, wherein pieces of Gold of the length, and also almost of the bigness of a humane Finger, grew in the Oar, as if they had been parts and Branches of Trees.
And I have my self seen a Lump of whitish Mineral, that was brought as a Rarity to a Great and knowing Prince, wherein there grew here and there in the Stone, which looked like a kind of sparr, divers little Lumps of fine Gold, (for such I was assured that Tryal had manifested it to be) some of them Seeming to be about the Bigness of pease.