ME 1 ALS. 83. Hydrargyrum. 257 



Cinnalaris, Ponderous, without metallic luftre, red, fcarlet when 

 fcraped, cafily melting, diflipating before the blow- 

 pipe with a blue flame and fuiphurous fmell. 



Hydrarg.niiner-ilis. pyriticns. Syit. nat xii. y p. 119. «. 3. 



Mercuriu-s fulp^ ure mineralif. WalLftst.p. 150, n. 2. 



Native Cinnabar. Kh-n.van miner, t. p 228. 



Native Cinnabar. Schmei/ser 7ni>!er. 2. p 66. 



Suiphuret of Mercury, ^homfon chem- ^, p 34. 



1. Coch neal red, hard, of a foliated or uneven frafture, fpi-cific 



gravity when pure 10,128. 



2. Scarlet, foft, of a fibrous or earthy fraflure, fpecific gravity 



when pure 6,902, 



3. CryftalHzed, 



Found in Peru, Chili, Neiv Spain, Japan, China, ^iheria, Hun" 

 gary, Sicily, Germany, Sec. d'.fleminated, in vein«, t^rains, or 

 ramifications, in a matrix of indurated clay, white and fer- 

 ruginous quartz, calcareous fpar, argillaceous f^uft, or py- 

 rites; colour various fh:-;des of red, f )metimes greyifh : the 

 cryltals are 3 or 4-fided pyramids fingle or double, 3.fided 

 prifms with 3 fided pyramids, or 6 fided prifms: more or 

 lefs Oiiniog, and of an earthy, lamelUr, compact, fibrous, or 

 granular texture: the fofter kinds ilain the fingers and make 

 a red mark : it is infoluhle in nitric acid, and contains about 

 80 of mercury and 20 of fulphur, 



bepaticum^ Ponderous, of a common form, burning with a blue 

 flame but evaporating only in part. 

 Brunmch Cronli. miner. 216. B. i . 

 Hepatic mercurial ore. Kir-wan mineral. 2.p,Z2j\., 

 Hcpitic mercury. SchmeiJ^er mineral. 2. p. 69. 

 Hepatic mercurial ore. Thomfonchem. 4.^. 35. 



1. Ofacompad texture. 



Kir'wan mimral. 2, />. 225. SchmeiJJer 2. p. 70. 



2. Of a llaty texure. 



Kirnnan 2 p. 226, Schmeijfer 2. p> 70. 



Found in the mines of Idria, and is nothing but cinnabar mix- 

 ed with indurated clay ; colour dark red or liver-brown, 

 greenifh, bluifh, or lead colour, or fpeckled green or blue : 

 texture compaft, nearly even, (hining and taking a polifh, 

 fometimes fo foft as to be cut with a knife, and leaves a red 

 mark: fpecific gravity 7,186; it is not foluble in nitric, but 

 esfily in muriatic acid. 



cmpriferum: Dark-grey, of a glafTy texture, decrepitating and emitting 

 fuiphurous flames when heated, and before the blow- 

 pipe leaving a bead of copper. 

 Hydrargyrum crepitans. Syji» nat. xii. 3./. 120, »# 5« 



VOL. VXI. — K k 



