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General Biflory of D R U G G S.

Vol. II.

Ill

7. Of Perigueur.

Vomer. T)Erigueur, or Perigueux, is a Mi-neral, or black Stone, like hea-vy black Coal, hard to be reduc'd intoPowder.

Enamellers and Potters make ufe of ir.There needs no other Choice about it thanto fee that it be pure, and clean from Irrpu-rities j for if there be any other Mineralmix'd among it 'twou'd fpoil all, thereforethey that fell it to the Workmen, muft takethe fame Care as they do in Lead Oar.

The Perigueur which we fell at Paris isbrought us from Daupbiny and England.

Lapis Petracorius, Perigord, orLemery. Perigueux, is a Kind of Marcafite,or hard Stone, that is heavy and fo-Iid, black as Coal, difficult to reduce toPowder : It is met withal in feveral Minesof Dauphiny, and in England, from whenceit is brought us in Pieces of different S.zes ;the Enamellers and Potters ufe it : You oughtto chufe it pure and neat ; it is deterfive andaftringent.

8. Of Safre.

Potnet. Cdfre, or %afre, is a Mineral of abluifh or Partridge Eye Colour,which the Englifh, Dutch, and Hamburgers,bring us from the Eaji-Indics, and efpeciallyfrom Surat.

Moft of the Safre we have is in a greyPowder-like Aflies, from which it fo littlediffers in Appearance, that we are forc'd toconfult fuch as are vers'd in its Qualitiesere we can well diftinguifh.

There are two Sorts of Safre, the fine andthe common ; the former is in a bluifh orcineritious Stone, the latter in Powder ; andvery often fo bad, that 'tis hardly good forany Thing, and being fo very weighty muftneeds be mix'd with Spar, the other beingmuch lighter.

Safre is much us'd by Delf Ware andGlafs-Makers, to give a blue Colour to bothSorts of Ware: Tis alio with Safre thatthey colour calcin'd Pewter, in order tomake the fa'fe Stone, which I've noted in

the Chapter of Enamels: and laftly, withSafre, it is that the azure Colour of Glafs isproduc'd, as is before obferv'd, and ofwhich is made the counterfeit Saphirs.

Sapbre, Safre, Z^afre, or Saphire,is a Mineral whereof there are two Lemery,Kinds; onecall'd Fine Sapbire, andthe other common: The fine Saphire is apretty foft Stone, of a bluifh Colour; thecommon Saphire is a greyifh, heavy Pow-der; both Sorts come from India. Thefine Saphire is us'd to give a blue Colour toEnamel, to Earthen Ware, and Glafs; to makean Azure; they likewife colour counterfeitSaphires with it, whence it takes its Name.

9. Of Rufma.

JJVfma is a Sort of Mineral, in■^ Colour and Figure refembling Pcmet,the Drofs of Iron, found in greatPlenty in Galatia, call'd at this Time Chan-ger : This Mineral is in fuch Vogue amongftthe Turkj to take of Hair, that thofe of allRanks ufe it, by which the Grand Signiorhas an Income of 30000 Ducats per Annum.This Depilatory is very little ufed in France,but I'm fure if 'twas better known 'twcu'd bepreferr'd to Lime and Orpiment upon thatOccafion, it being ftronger and more effica-cious, if there be no Danger in it.

t\ufma is a Mineral that is like theDrofs of Iron, both in Colour and Lemery.Figure; there is Abundance of itin Galatia ; it is a Dep.latory very muchus'd by the Turks.

10. Of Orpiment.

/^IP^pine, or Orpiment, is a Mineral^ commonly tound amongft Cup- Pcmet.per Alines in Stones of differentBignefs, Colour and Figure ; fome being ofa golden, others of a redd iff), and fome of agreenifh Yellow, and fomeriines alfo almoftquite red ; which laft proceeds frcm the dif-ferent Degrees of Heat in the Bowels of theEarth where 'tis form'd. The Mines ofCopper in which this Orpiment is found arenever wi.hont fome little Gold ; and for thatReafon thofe that work in them don't fail to

make