2S6 METALS. 83 Hydrargyrum. 



sublimatiitn. Without metallic luftre, fnbliming almoft entirely before 

 the blowpipe in the form of a white fmoke without 

 fulphurous flame or vapours. 



Woulfc i Experiments. ^TJJ- p- 4. 

 SuckoHV Befihr,d6s naturl. lurp, p. ^. 

 Baumer hid. mere corn. 1 785. Kivwan 2. p> 226, 

 Corneous mercury. Schmeifser. miner. 2. /. 73. 

 Muriat of mercury. Thomfon chem. ^, p. i6» 

 Found in the mines of Wolfftein and Moersfeld in tfie Palatinate^ 

 and near Mofchellavjhurg in the dutchy oi DeuxpontSy in fcales 

 or grains, or cryftallized in fmall 4-fided prifms terminated 

 by 4 fided rhomboidal fummits, or 4-fided pyramids with 

 the angles truncate: colour fmoke-grey, yellowifh-grey, 

 yellowifh-white, lemon-yellow, or greenifh, rarely blackifh: 

 the crv Hals have a pearly luftre, are femitranfparent and fofr, 

 and have a foliated texture; when thrown on red hot char- 

 coal they difcover a fmell like garlic, and when mixed with 

 lime-water occafion an orange-coloured precipitate: it con- 

 fiils of mercury combined with fulphuric and muriatic acids 

 in various proportions. 



larvatum. Deep red, of an earthy texture, heavy, fubliming its mer- 

 cury by heat. 



Red native precipitate. SchmeiJJerz.p.S^. Kirv:an2^ p, 2z6* 

 Red oxyde of mercury. Thomfon chem. 4. p. 36, 



Found mixed with fand near Altcantm Spain, and in the foil in 

 the mercury-mines of Uria and Bufchians, compaft and hea- 

 vy, and is generally mixed with globules of mercury: wheA 

 heated in a clofe vefiel it yields oxygene and a little carbonic 

 acid gas, and the mercury becomes recovered : it appears to 

 be the red oxyde of mercury combined with alumina or 

 bitumious marl: generally contains about 0,91 of mer- 

 cury. 



JEthiops^ Black, without luftre or tranfparency, ftalning the fingers, 

 eafily melting, and if the heat be increafed entirely 

 fubliming with a fulphurous fmell and flame. 



Freher no'v, aSl. petrop. 3. p. 268. 



Hacquet chem. annul. 3. p. 48 1 , 



Native aethiops. Kir<wan miner, .2* p. 227. 



^thiops mineral. SchmeiJJer miner, 2. p. 67. 



Found in the mines of NaJ/'au near Kircheimy and in thofe of 

 Uriat generally in a loofe powdery ftateof ablack orgreyifh- 

 black colour, and accompanied by lamellated cinnabar or 

 fulphur pyrites: it confills of mercury merely mixed with 

 fulphur: fpecific gravity 2,223. Hahn, 



