378 On ALLANITE, a new 



ditional quantity of faccinate of ammonia was adde. And we 

 precipitate fell \, but inftead of the dark reddifh-brown colour, 

 which characterizes fuccinate of iron, it had a beautiful flefh- 

 red colour, which it retained after being dried in the open air. 

 When heated to rednefs in a covered crucible, it became black, 

 and had fome refemblance to gunpowder. It weighed 7.2 

 grains. 



4. This mbftance attracted my peculiar attention, in confe- 

 quence of its appearance. I found it to poffefs the following 

 characters : 



a. It was taftelefs, and not in the leaft attracted by the mag- 

 net, except a few atoms, which were eafily feparated from the 

 reft. 



b. It was infoluble in water, and not fenfibly acted on when 

 boiled in fulphuric, nitric, muriatic, or nitro-muriatic acid. 



c. Before the blow-pipe it melted with borax and microcof- 

 mic fait, and formed with both a colourlefs bead. With car- 

 bonate of foda it formed a dark-red opake bead. 



d. When heated to rednefs with potafh, and digefted in wa- 

 ter, fnufF-coloured flocks remained undiffolved, which gradual- 

 ly fubfided to the bottom. The liquid being feparated, and exa- 

 mined, was found to contain nothing but potafh. When mu- 

 riatic acid was poured upon the fnufF-coloured flocks, a flight 

 effervefcence took place, and when heat was applied, the whole 

 diflblved. The folution was tranfparent, and of a yellow co- 

 lour, with a flight tint of green. When evaporated to drynefs, 

 to get rid of the excefs of acid, a beautiful yellow matter gra- 

 dually feparated. Water boiled upon this matter diflblved the 

 whole. The tafte of the folution was aftringent, with a flight 

 metallic flavour, by no means unpleafant, and no fweetnefs was 

 perceptible. 



e. A 



