^alclfarme^ 
-^uripig- 
taenturit. 
metals. 93. Arfeaktsm'. 
599 
Focrnd m Grfof- Britain, Tarbn® prt* ot' 
i wna tn „-caroDanvine fp’.r, barytes or feldfpar, asaffi've, 
me? d flemi natearofter. cLpfed of Jkmifpb^cal hye^, 
branched, perforated, botrv’Oidal, or ftak^^ - 
cotTod:(rt, fjrface foon tarnifhing ami beenm- 
W I hv «Worl to the -r ; ftreak bl»ifh-S,re7, F^er 
,ta blacki^ ■ foaietimes s Tittle fonewocts when atttefc 
S “before S^e'blowpipc it immediately emit, a arhitc 
r r ■ r,r.<, -rs necuhar and highly poifonou, rrapoors to 
fooke difformg , lirto We and gradoaHy 
a grrat dvtlanc , S ^ osyde in theformof » powder: 
yani(hingr epoi g always atlwed wuli 
fomTho?and^ often contains foaie cobalt, htfmuth, filver. 
and foroetimss a little gold. 
White, fohible in 80 times its weight of water. 
Arfcnic. nativ. album. H'all.fiif- A ‘^O, ». i- 
Native calx of arfenic. Kir-ivan mmr. 2- ^ 2 J». 
White oxyde of arfenic. S<hnui£er mtmr. 2. /. 263- 
Native oxyde of arfenic. ‘Thompin chtm. 4. />. toj- 
White arfenic. Berkmh- fyn. f. 268. 
1. Tn a loofe doil or mealy powder. 
Loofe native cals of arfenic. Lirnson tmk. 2. p. 25S, 
i In a ftatcofcr>'ftalliz 3 tion. _ 
Arlenicum cryllall. &yp. nat. xii, 3. ^ 117 * *• 
Wall. fyfi. miner. 2. f- l6o- b. 
, (n an indurated ftate combined with earth 
Arfenic. terra mineral. WalLfyfi-. 10. 
Indurated native calx. Ki'wn miner, z.p. 259. 
Found in various parts of Gnat-Britain, Gtrmm, 
stony, BohmiaT^c. cither in powder or mafGve 
• ? d'in prifmatic needles : colour whne » grey, with often 
a ;ins.e of red, yellow, green or black : before the blowpipe 
it fublimcs bJt does not inOame. and unges borax green:, 
fpeclfic gravity 3,700. 
Ponderous, yellow, curved or nndulately foliated of a 
^ wa^y internal Inftre, evaporating almoft entsrely be- 
fore the blowpipe. 
Pvrites nudus. Syll. nat, xn. 5. /• 1 « 5 - *• 2 - 
Jf »■ •‘■J- «■ s- 
Orpiinent. Berkenkmt fynopf p. 268. 
Orpiment, Kir-uian mineral. 2. /. 260. 
P p 2 
