METALS. 83 Hydrargyrum. 
1^6 
sublimatutni Without metallic luftre, fubliming almoft entirely befo''® 
the blowpipe in the form of a white fmoke withof* 
fulphurous flame or vapours. 
Woulfi s Experiments. 1777. 4. 
Suckonsj Bef.hr. e/e s naturl. lurp p. g, 
Baumer hsti. mere corn. 1785 Kirvjan z. p, 226, 
Corneous mercury. Schmer/'ser miner. 2. p. 73. 
Muriat ot mercury. Thomfn them. 4. p. 36. 
FoiinJ in the mines of Wolf/iein and Moersfeldixs the Palatinate, 
and near Mofchellarjhnrg in the duicby of Deux pants, in fcales 
or grains, or cryltallized in fmall 4-fided prifms terminated 
by 4 fided rhomboidal fummits, or 4.rided pyramids with 
the angles truncate: colour fmoke-grey, yellovvilh-grey> 
yellowilh-white, lemon-yellow, or greenifn, rarely blackilh: 
the cr) Hals have a pearly luftre, are femitranfparent and foft» 
and have a foliated texture; when thrown on red hot char- 
coal they difeover a fmell like garlic, and when mixed with 
lime-water occafion an orange-coloured precipitate: it con- 
lilts of mercury combined with fulphuric and muriatic acids 
in various proportions. 
larvatum. Deep red, of an earthy texture, heavy, fublimino its met' 
ciiry by heat. 
Red native precipitate. Schmeijferz. p.6^. Kir-wan 2, p. 226, 
Red oxyde of mercury. Thomlon chem. 4. p. 36. 
Found mixed with fand near Altcant in Spain, and in the foil 
the mercury-mines of ldr>a and Bu/ebians, compaft and hea- 
vy, and is generally mixed with globules of mercury; whe* 
heated in a clofe veflel it yields oxygene and a little carbonic 
acid gas, and the mercury becomes recovered : it appears ta 
He the red oxyde of mercury combined with alumina of 
bitumious marl: generally contains about 0,91 of n)Cf' 
cury. 
JEthiops. Black, without luftre or tranfparency, ftaining the 
eafily melting, and if the heat be increafed entirely 
fubliming with a fulphurous fmell and flame. 
Freher no-v. ad petrop. 3. p. 268. 
Hacquet chem. annal. 3./. 481. 
Native ajthiops. Kirovan miner. 2. p. 227. 
uEthiops mineral. Schmefer mister, z. p. 67. 
Found in the mines of Najfau near Kircheim, and in thofe 
Idria, generally in a loofe powdery Hate of a black orgreyilh' 
black colour, and accompanied bv lamellated cinnabar of 
iulphur pyrites: it conliHs of mercury merely mixed wi*^ 
fulphur: fpecific gravity 2,223. Hahn. 
