Chap. XXXVI.] wun (yeotmal) district. 
979 
The Wun (Yeotmal) District. 
T. W, H. Hughes' drew attention to the occurience of manganiferous 
sandstone in the Kamthi series in the Wardha Valley coal-field. 
Later2, he mentions the occurrence of manganese, as a ' coloring 
medium', some of the Kamthi sandstones holdmg as much as 6 per 
cent, of it, and says3 — 
'Soutli of Sii piii' are tlie Miilagaih hills, whose highest summit* is one of the most ele- 
vated points to which the Kamthis rise within the Wun division of the field. They are 
composed of fine granular sandstones of varying colours, sub-vitreous variegated sand- 
stones, pink argillaceous shales, and a few conglomcra e bands. Some of the sandstones 
are slightly manganiferous of a dark eolour. General direction of dip, south-west.' 
In 1874^ he discovered manganese-ore in red clays at the base of Mala- 
garh hill, on its east side , and therefore tmderlying the above-mentioned 
sandstones and shales.^ 
'These clays alternating with others, and occasional calcareous and ordinary sand- 
stones, extend down to the Kawarsa stream, in whose banks they are well exposed. The 
ore is most abundant near the hill, but throughout the entire series of these clays, it is 
present in limited cjuantity ; sometimes in concretionary lump< of moderate richness, but 
more generallj' sparsely distributed in strings and irregular laminaB that apjaear to bind 
the clay into masses of indefinite shape.' 
An analysis by Tween^ gave : — 
This occurrence is hence of no economic importance both because 
of the very poor quality of the ore and because of its limited quantity. 
The ore is psilomelane of bluish black colour. 
1 Rec. Geol. Surv., hid., VII, p. 125, (1874). 
2 3Iem. Geol. Surv., Ind., XIII, p. 68, {1877)- 
3 hoc. cit., p. 76. 
4 966 ft. above sea-level. 
5 Rec, VII, p. 125. 
6 Mem., XIII, p. 76. 
7 Loc. cil., p. 114; Rec, VII, p. 125. 
Loss on heating 
Oxide of manganese . 
Iron-oxide and alumina 
Sand and clay . 
8-5 
44-6 
6-8 
40-1 
Total 
100-0 
2B 
