C m 3 



b. Native Oxyde of Copper; found in compact 

 lumps, fprinkled in the ftate of fmall particles, of 

 a hyacinth colour. Sometimes refembling brown 

 pitch, or of a fteel grey, and brownifh red. Crys- 

 tallized in cubes and o&ohedrons. 



c. Pitch Copper Ore, hyacinth red; little (lim- 

 ing, foft, compact, pulverulent ; containing oxyde 

 of copper with oxyde of iron. Born. 



d. Carbonate of Copper; Malachite, fky blue, 

 moftly pulverulent, cryftallized in rectangular oc r 

 tohedrons and various; ftala&itical. Found in 

 Tyrol. Anal. Copper 73. Carbonic acid 26. 



Font ana. 



e. Arseniate of Copper; of a deep olive, or 

 emerald colour, femi-tranfparent, cryftallized ir* 

 various modifications. Anal, Copper 73. Car* 

 bonic acid 26. Fontana. 



f. Sulphate of ^ 

 Copper, 



Synonymous Names. 

 Vitriol of Cyprus. 

 Blue Vitriol. 



Vitriol of copper, or of Venus, 

 „ Blue copperas. 



cryftallized in tetrahedral prifms, and their modi- 

 fications, lhining, colour brafs yellow : contains 

 copper, iron, and fulphur. 



g. Muriate* of Copper; amorphous, in a fandy 



* Salt formed by the union of the muriatic acid with different 



bafes* 



form. 



