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JIANG.IXESE DEPOSITS OF INDIA: ECONOMICS. [P ART III : 
Ornamental applications. 
In additiou to the manganese-ores proper, use might also be made 
of two of the Indian silicate minerals of manganese. In my paper 
' Manganese in India ', p. 120 ^, I wrote : — 
' Moreover, I would draw attention to the fact that many of the manganese- 
ore deposits of the Central Provinces contain considerable quantities of rhodonite, 
at present being consigned to the dump-heap ; but that the rhodonite from other 
parts of the world, especiilh' th? Ural Mountains, is often used as an ornamental 
ston^. It would b? difficult to find a more bsautiful ornamental stone than the 
pink rhcdonite with d^'cate veins of black mangan°s'-oxide, such as occurs at 
MaEegain, Xagpur district, or than the rhcdonite studded with orange spessartite, 
such as 's found at Chargaon, Xagpur d'strict, and in the Chhindwara district. 
In th'^ United States, moreover, spessartite when found clear and transparent is 
sometimes turned to account as a very beautiful gem-stone of orange and red 
colours.- I have not seen any Indian spessartite, except very small crystals, 
sufficiently clear for this purpose-, but it is as well to keep it in view '. 
Since this was written 3Ir. H. D. Coggan, Manager of the Central 
India Mining Company, has kindly tried to obtain some large specimens 
of the rhodonity found in the Manegaon deposit referred to aboye. He 
was not able to obtain anywhere pieces of rhodonite large enough for such 
purposes as the manufacture of small table-tops, because the rock was too 
much altered into manganese-ore. The specimens he obtained were 
nearly all of them interbanded with spessartite-rock, so that it would be 
difficult to select a piece of rhodonite more than 6 inches across. But 
if the banded rock could be used, fairly large pieces of rock might be 
obtained. As it is, however, a considerable supply of small pieces up to 
6 inches across could easily be obtained, should anyone wish to start 
an industry for making small ornamental objects from rhodonite. And 
until some of the other deposits containing abundance of rhodonite have 
been carefully exploited, I shall not take it as demonstrated that it is 
impossible to obtain in India moderately large pieces of rhodonite 
suitable for ornamental work. 
1 Trans. Min. Geol. Inst. Ind., I, (1906). 
2 Ilimz ; " Gems and Precious Stones of North Amen'ja'. p. 79, (1890). 
