264 METALS. 84. Ciiprum, 
Arfeniate of Copper. Schmeiffermir.c'al. z- p, Ij2. 
Aricnia: of Copper. Thomfon cbe:'i /<. 4":. 
Arieniato of Copper. Spiuerhy nun /. 31, 32, 37. 03. ^ 
Found in tlic Carrarack m'ne in CinmuJl, and near yonsbac^ 
in Silcfitti in cliffs of quartz.: colour vnriou.s fnades of grccnr 
f mctimes inclining to brown, gencrafly in tranfparent cryL 
tals of various forms: fpecific gravity from 2,548 10 4,208 ^ 
a frne fpeciinen contained oxvde of copper 50,62. arfcnicacid 
45,00. water 350. Klaproth, 
tesiellatuiK, Grecn, in fmalT fliining chiftered cubical cryftais, emit' 
ting arfenical fumes when burnt. 
Klaproth fchreh Berl. Nat or f. 7. p. 1 60. 
Bennerby Brit, miner, tab. 31, &c. 
Found with the laft, of which it feeins to be a nlere variety ■' 
it probably contains a little iron. 
arenaceum. Grafs-green, of the condftenc^ of fand, fofuble in acids 
without efFervcfcence, burning With green and blu® 
flames when thrown on hot coals. 
Green fand of Peru, Kirwoan miner. 2. p. 149. 
Muriat of Copper. Ihomfon chem. 4. p. 46. 
Found in Peru, and when examined through a glafs appears a 
mixture of tranfparent green particles with quartz; contains 
oxvde of copper 73,0. muriatic acid 10,1. water 16,9* 
Klaproth, 
phosphora- GreyilTi-black externally, emerald green within, foft, 
ttm. a divergently fibrous fraifture, opake. 
Phofphat of Copper. ‘Ihom/ou chem. 4. p. 46. 
Found at Rhtinbretdbach near Cologne, in lumps, or difperfed 
thruugh other minerals, or in minute 6 fided cluftered cryf' 
tals : luftre glalTy without,' filky internally : it makes an 
apple green fcratch : contains oxyde of copper 68,13. phof' 
phoric acid 30,95, Klaproth. 
ttlbidumj Hardiflt, whitiflt, w'ith a metallic luflre, emitting arfeni' 
cal vapours when burnt. 
Cupr. arfenic. album. Syft. nat. xii. 3'. /. 145 n. 8. 
Cupr. arfenico et ferro. tt'all. (yst, Zj p 2?o a. 7. 
White Copper ore. Kirniian miner. 2. p.i^Z. 
White Copper ore. Schmeipser miner. 2. p. 142. 
White Copper ore. Thom/on chem. 4. p. 38. 
Found with other copper ores in the Middleicm Lvas veins, and 
in the mines of Hungary, Siberia, Germany and Saxony, lO' 
terfperfed with other foffils in larger or fmaller lump.", and 
f'Mnecimes cryltallized in 4-{ided double pyramids: colour 
ilccl or fifvery.grcy, often reddifli-brown j powder grey* 
