But not only the Regulus, but also all Antimony may many waies be used in the separation of metals, viz. For the extraction of hidden Gold, which not be done without Antimony; as shall appear by the following example. When you find a marcasit or other ironish fossile, that will not yield to the tryal by lead, add to it three parts of Antimony, and being well mixt, melt them in a covered crucible, and being melted, pour it into a cone; and when all is cold, separate the Regulus, which purge again by fire as before, and thou shalt find gold contained in the aforesaid fossile: And if it be indued with more plenty of gold, for it is not all drawn out at one time, viz. with the first Regulus, another Regulus is to be melted, by adding more iron and salt-petre, which is also of a nature near to Sol. And if these marcasit fossiles are not ferreous, you must in the first fusion, add iron and nitre to them, or else they yield no Regulus. By the adding more scales of iron, more Regulus is made, and for the same use as that is, of which above in the fusion and separation of extracted gold; weights also may be made out of the dross. And thus are lapis calaminaris, marcasit, kobolt, zink, talc, and other fossiles separated, viz. containing gold.
But all gold containing iron (as that of Stiria, Carinthia, the Granacia, and of Transylvania &c.) may this way be easily separated with profit, by the help of iron. And if the iron have no gold, yet if the Antimony have it, it may thence be separated by fusion with iron, viz. if it be brought to a Regulus. The rest of the Antimony may again be fused with new iron and new glass of more weight than it, but less than this, and be reduced into a Regulus fit for the following uses. Out of the dross let weights (that nothing may be lost) be made, that thou maist have the more gain; as may appear from the following example.
When you have the Antimony, a hundred of which contains two duckats, if you will separate the gold; take a hundred [weight] divided into three or four parts, fuse it according to art, adding a little iron and salt of ashes, and reduce them into small Regulus’s, weighing a pound or two. Then melt the dross with half the weights of the iron in a large and strong crucible, and thou shalt have more Regulus’s about fifty pound or more, dross 40 lib. which make weights of, or else guns, &c. the rest, about eight or nine pounds, will vanish into smoak. And so thou hast reduced the gold contained in a hundred weight, into one or two pounds, which thou maist sublime by fire into flowers (leaving the gold in the fire) for its uses, but those 50 or 60 pounds of the Regulus’s prepared by adding much iron, they having little or no gold, you may mingle with tin for its beauty, hardness and sounding, to make divers sorts of houshold-stuff, as platters, dishes, &c. for tin mixt with the Regulus looks like silver for whiteness and hardness, and sounds like it, nor is it so easily dulled as unmixt.
Now let us weigh what gain may come from the separation of the meanest Antimony. Put case that a hundred weight of Antimony be sold for three Royals (for so for the most part the Polonian is sold, than which, although that of Hungaria and Transilvania be dearer, yet this hath more gold) to which add 60 pound of iron, which is sold for half a royal, and the charge of coals and crucibles requisite be half a royal more: the total of the expences is four royals, for which take two duckats in gold, sixty pound of Regulus, eighty pound of dross, and one or two pound of flowers. Those 60 lib. of Regulus may be sold at the price of tin, whereof a pound is sold for a quarter of a royal, and then their whole price is fifteen royals. Then the eighty pound of refuse made into weights, may be sold at forty shillings, or at least twenty four shillings, or half a royal; and all things being considered and reckoned, as they ought, there may remain the value of sixteen royals.
And though the Antimony should yield but one duckat, and a pound of Regulus should be sold at the eighth part of a royal, yet the remainder would be above six royals: And in a day there may easily be two hundred weight separated by two men. And then suppose it should contain no gold (as some Antimony doth not) yet may four or five royals be gotten daily.
But when you have Antimony, one hundred whereof contains three, four, or five duckats, and iron requisite to the separation containing one or two ducats, then there is so much more gained. Then let him that undertakes this business seek for the best Antimony and iron, and he may well gain in a day twenty, thirty, and sometimes sixty royals.
N. B. And if you should have so much Regulus that you could not mix all of it with tin, for want thereof, then it may be sold in parcels, so that one ℔ may go at a fourth part of a royal; by which means the daily gain may not be diminished, but may be rather encreased; as may be seen by what follows. The Regulus of Antimony is the masculine species of Lead; whose first being is gold impure and immature: but the first being of common Lead is impure and immature Silver; as experience witnesses; for Antimony being purged and fixt, yields gold, but the common lead only silver. And because Antimony, which is better than common Lead, is called the Philosophers lead, or their secret lead; of many so named, but known of few; not that the thing is unknown, or of an unknown original, but by reason of its hidden proprieties; therefore I say that its vertues are not all to be known by any mortal, though he should have a hundred years to search into wonderful nature, for it is unsearchable, and the creator of all wonders, let him injoyn himself silence, neither let him glory in the knowledge of it, who hath not made tryal of it; for in it, through it, and by it, Nature and Art do strive for perfection. Of which more elsewhere.
Now follows the Use.
Having mentioned Antimonial Regulus, which is Lead and better than the common. It must also purify impure metals, wash them, separate the occult Gold and Silver in them; that which the common Lead can do, to which, if those be added, it attracteth the more impure part in the Cupel, which it converteth into dross, and draweth down with it into the porous ashes, leaving the purer Gold and Silver in the Cupel: but from some Tin and Copper not yielding to the Lead, nor willing to be washed by it, it cannot extract their Gold and Silver; neither hath any one written the way of separation by it. Lazarus Erker indeed hath described (and others also) the way of separating Silver from Tin and Iron, which is not to be disesteemed if it be accidentally mixed with Silver, which is separable that way, but not so, being generated in, and radically mixt with them, requiring other Lead, willingly embracing Tin and Iron, which nothing but Regulus can perform.
But seeing Tin and Iron do for the most part, contain much Gold (but chiefly Tin) viz. inseparable by the common way, it will be worth our pains to seek another Lead and way of separation; as it is apparent to Refiners, proving Tin and Iron by the common way on a test; whilst Tin and Iron melted in the Lead, do forthwith shew their stubbornness by innate proprieties and forsake it, viz. as a contrary rising to the top like dross or ashes, without any separation, Gold and Silver being excepted, if accidentally mixt together, which are left with the Lead; but not so being hid in their middle or center. But that the truth hereof may appear, I will demonstrate it by example: Place on a test under a tyle 16. parts of Lead, and one of Tin, after the manner of proofs, give a fusing fire for to separate the dross; and all the Tin almost flying away, will at the bottom be burnt, and separated like ashes, being sublimated on the top of the Lead; not deprived of its Gold and Silver incorporated together, which afterward I shall demonstrate, when all the Tin is sublimated from the Lead, and calcined, and the test taken from under the tyle, and the rest of the Lead poured off, and you shall find after cupellation no more Silver than the sixteen parts of Lead did contain before, if they had been cupelled without Tin; sometimes less, Some part being taken away by the Tin in the examination: the same is done with Iron, altho’ thou shouldst add Copper with glass of Lead, to retain the Tin and Iron, thereby to separate their Gold and Silver, you would effect nothing: for although some more Silver may hereby be extracted, yet that would not come from the Tin or Iron, but from the Copper: it may therefore be extracted another way, of which, hereafter.