C ">8 ] 



found in folid mafies, and cryftallized, hexagonal 

 prifms, terminating in fix-fided pyramids ; texture 

 fhining, radiated, fibrous ; brittle and femi-tranf- 

 parent ; effervefces with diluted nitric and muri- 

 atic acids, and is entirely diifolved by them. Ex- 

 pofed to a ftrong heat, it parts with it's carbonic 

 acid, and combines with heat, and like lime is 

 foluble in water. Anal. Acid 20,8. Baryte 

 7856. Withering. 



Synonymous Names, 



b. Sulphate of f" ea 7 or .P°" dero " s f P ar - 

 r, S* J < Barotic vitriol. 

 Baryte, | Barofelke . 



found in folid maffes, cryftallized, approaching to 

 an earthy date, and the tranfparent kind is elec- 

 tric ; is four times heavier than water. When ex- 

 pofed to heat ? and to the fun, it has the property 

 of abforbing light, which it emits in the dark. 

 Like metals, it is precipitated from it's combina- 

 tions with the different acids, by the pruffiate of 

 pot-afh*. Anal. Sulphuric acid 32,8. Baryte 

 67,2. Withering. 



Bolognian Stone. Anal. Sulphate of baryte 

 62. Silex 16. Argil! 15. Sulphate of lime 6. 



Water 2. Arvidson. 



c. Liver-stone y of a greyifti, or greyifh black 

 colour; texture foliated, ftriated ; does not cf- 

 fervefce with acids ; when heated, or rubbed, it 



* Salts formed by the union of the Pruflic acid, or colouring 

 matter of Pruffian blue, with different bafes. 



emits 



* 



