SYNOPSIS OF PART II. 
Ixxxiii 
[CHAPTER XV.] 
The Gondite Series. 
In this chapter the geology and origin of the portion of the Dhiirwar 
Series known as the gondite series is discussed in some detail. 
The main conclusions as to origin are : — 
1. That portions of the metamorphic and crystalline complex 
with which the manganese- bearing rocks of the gondite 
series are associated in the districts of Chhindwara, Nagpur, 
Bhandara, and Balaghat, are the more highly metanior- 
phosed equivalents of the locks that have been designated 
the Chilpi Ghat series in the Balaghat district. 
2. That the manganese-bearing rocks are not intrusive in these 
metamorphosid sedimeiits, but have been formed by the 
metamorphism of manganese-bearing sediments deposited 
contemporaneously with the sands, clays, and impure grits, 
from which these quartzites, mica»schiats, and gneisses 
were formed. 
One of the most important reasons for the second conclusion is the 
evidence that the mica-schists, spessarti'ce-bearing rocks, and gneisses, 
of Ukua in the Balaghat district, are stratigraphically ecjuivah nt to the 
phyllites, interbanded manganese- ores andquartzitts, and conglomeratic 
grits, respectively, of the Balaghat deposit. 
■ tt r . 
[CHAPTER XVI.] 
The Gondite continued. 
In this chapter are given lists of the minerals found in and associat- 
ed with the rocks of the gondite series. This is followed by a brief 
account of the petrology of the series, with lists of the numerous rocks. 
A few of these are described. The most important is gondite. This 
is a rock composed of a mixture of quartz and spessartite-garnet in vary- 
ing proportions. It is typically fine-grained, so that it sometimes 
looks at first sight like a quartzite. But it may be very coarse-grained, 
when the spessartite often occuis as well-formed crystals of considerable 
beauty. 
