80 Oft a new Metal called Tellurium. 



remainder of the metal reduced and melted with a brilliant 

 furface, and almoft always cryftallized. 



EJfential charaBenfmg Marks of this neiv Metal. 



1. It has the white colour of tin, approaching to the grey 

 colour of lead. Its metallic fplendour is confiderable, and 

 its frac? ure laminated. It is hig ily brittle and friable. By 

 fuffering it to cool quietly and gradually, it readily aflumes a 

 cryftallifed furface. 



2. Its fpecifit gravity is ^.115. 



3. It belongs to the clafs of the mod fufible metals. 



4. When heated by the blow-pipe upon charcoal, it burns 

 with a very lively flame of a blue colour, inclining at the 

 edges to green. It is fo volatile as to rife entirely in a whitifh 

 grey fmoke, and exhales a difagreeable odour like that of 

 radiihes. On ceafing to heat it, without having entirely 

 volatilifed the fmall portion fubjected to this operation, the 

 button which remained, retained for a long time its liquidity, 

 and, by cooling, was covered with a radiated vegetation. 



5. This metal amalgamates eafily with mercury. 



6. With fulphur it forms a grey fulphure of a radiated 

 ftruclure. 



7. A folution of it in the nitric acid is tranfparent and 

 colourlefs. When concentrated, it produces, in time, fmall 

 white light cryftals, in the form of ne>.dies, which exhibit a 

 dendritic aggregation. 



8. The new metal diflblves in the nitro-muriatic acid. 

 When- a large quantity of water is added to fuch a faturated 

 folution, the metal is precipitated in the ftate of an oxyde, 

 under the form of a white powder, which, in this ftate, is 

 foluble in the muriatic acid. 



9. By mixing cold, in a well-flopped veflel, a fmall quan- 

 tity of tins metal with a hundred times its weight of con- 

 centrated fulphuric acid, the latter gradually aflumes a beau- 

 tiful crimfon red colour. By means of a fmall quantity of 

 water added, drop by drop, th* colour difappears, and the 



fmall. 



