C m 3 



a little flexible; often of a beautiful brilliant lufi. 

 tre, which is improved by the fcarlet red fhades. 

 When reduced to powder, it is ufed as a pigment. 

 Found in Hungary, and other places. Anal. 

 Arfenic 84,90. Sulphur 16,10. Kir wan. 



d. Red Sulphurized Arsenic> or Ruby Arfenic $ 

 of an aurora colour ; contains a larger proportion 

 offulphur than the preceding ; common in China, 

 where it is made into vafes, pagodas and other 

 ornamental works. Red arfenic is commonly 

 found near volcanos, as at the Solfatara near 

 Naples, Sec. ; it's matrix is quartz, heavy fpar, 

 and ferruginous clay. 



e. Mispichely Pyritical Arfenical Ore, ArfenU 

 cal Mundick; arfenic and iron mineralifed by ful- 

 phur; fometimes combined with filver; it is found 

 in cubesj rhomboidal, four-fided, truncated prifms^ 

 fometimes terminating in dihedral fummits, with 

 triangular plans ; oclohedral ; the furface is gene- 

 rally ftriated. When enclofed in a clofe Veffel, 

 it fublimes and forms orpiment, leaving the irori 

 behind. It's matrix is ipathofe iron ore* fluor, 

 quartz, blende. Found in Saxony, Bohemia, 

 Tufcany, and on the Hartz. 



D. COBALT. 



COBALT is feven times heavier than water, 

 of a rofe- white colour, brittle and eafily reducible 

 to powder ; is a little moveable by the magnet, 

 probably from fome iron it contains ; difficult of 

 fufion 1 when fufed with fand and potalh, it forms 



fmalts, 



