METALS. 83. Hydrargyrum. 257 
Ponderous, without metallic luftre, red fcarlet when 
fcraped, call 7 meltings dflliDattug betore the blow- 
pipe with a blue flame and fu phiirotis fmell. 
Hydrarg.mineralis. pyviticns. %>/ xti. 3. /i. 1 1 p. «• 3 - 
Mcrcuriiu fulptiure minerahf. IVal' fin p- 'S®- ”■ *• 
Native Cinnabar. Ktr^^nn tninet . 2 p 
Natit'c Cinnabar. Pchnmfstr mire^. 2. p. 06. 
Suiphuret of Mercury. Thomfon cheM p 34. 
1. Cochmcal red, hard, of a foliated or uneven fraaurc, fp cific 
£;rd\ity vt' hen pure io.iaS. 
2. Scarlet, foft, of a fibrous or earthy frafture/ fpecific gravity 
when pure 6,90^. 
q. Cryftallizcd. 
Found in Peru, Chili. Keiv Sp'iin, Japan, Ctjiaa, ’^ihcria. Hun- 
oary, Sicily, Germany, &e., difibniin.atcd, to veins grains, or 
'ramifications, in a matrix of induraud flay, wlutc and fer- 
ruginous quartz, calcareous fpar, argi'laceons (hilf, or py- 
rites: colour various fh .des of red, fomctimc!- grcytlh : the 
cryitals arc j or 4-fided pyramids lingle or double, 3 fiaed 
priffus with 3 fided pyramids, nr 6 fided prifins; nore or 
lefs Ihinirg, and of an earthy^ lamell.r, compaft, fibrous, or 
craiutlar texture: the foftcr kiitds liain the fingers and make 
a red mark: it is infolulile in nitric acid, and contains about 
80 of mercury and 20 of fulphur. 
Haticum. Poiidorous, of a common form, burning with a blae 
flame bm evaiwating only in part. 
Brunaicb Cronil. mittei". 21b. B. l . 
Hcuatic mercurial ore. Kir-wan mineral. 2 . p. 224. 
Hcp..tic mercury. Sehmefier mineral. 2. p. 69. 
Hepatic mercurial 01 c. homfin chem. p. 35. 
I. Of a compact texture. 
Ktrm^mi mineral. Z. p. 22 X,. Schmeijfir 2. p. 70. 
j. Of a llaty tex ure. 
Kunxan I- p. 2zh. Schmijjer 2. p. 70, 
Found in the mines of Idria, and is nothing hut cinnabar mix- 
ed with indurated clay : colour dark red or liver-brown, 
grccnifli, bluilh, or lea'd-colour, or fpeckled; green or blue: 
texture compaA, nearly even, Ihinirg and taking a pohfli, 
foroctiines fo foft as to be cut with a knife, and leaves a red 
mark; focci.fic gravity 7,186: it is not foluble in nitric, but 
eafily in muriatic acid. 
■\trferumi Dark-grev, of a glafly texture, decrepitating and emitting 
fulohurauR flames when heated, and betore the blow- 
pipe leaving a bead of copper. 
Ilvararcytum crepitans. Syft. nat. xii. 3.^. 120, n, 5. 
^ VOL. VII. — K k 
