REPORT CONCERNIND THE MANGANESE DEPOSIT IN GODINESD. 613 
Fig. 47. Deposit of Tomasesd. 
III. The Ouality of the Manganese Orcs. 
The stuff of the deposits A), B), C), D), E), F), G), H) is a pyrolusite 
of good guality; it has a stell-grey colour in all the deposits, but in the out- 
crops it has an earthy appearance and is overcovered with a ecrust. When that 
erust is taken off, one sees a very pure pyrolusite. The ore of Godinesd— 
Tomasesd contains very little foreign matter. Its yield in silicates, barite, 
copper and sulphur is very small, and it forms therefore an excellent mate- 
rial for the working of iron and steel. 
