Chap. XM..] 
GOXDITE SERIES : PETROLOGY. 
335 
of the manganese-ore bodies and bands of mansranese-silicate-rock. The 
following is a list of such rocks found in the Central Provinces : — 
List of the non^mavganiferou^ rocks forming the ' country ' of the 
gondite series in the Central Provinces. 
Sericite-phyllite and schist. 
Mica(muscovite)-schist. 
Mica-quartz-schist. 
Magnetite-mica-quartz-schist. 
Biotite-schist. 
Felspathic mica-schist. 
Biotite-felspar-schLst. 
Talcose schist. 
Schi.«tose quartzite. 
Felspathic schist. 
Micaceous qaartzite, often containing tourmaline. 
Quartz-rock. 
Quartzite. 
Jaspery quartzite. 
Hematite-quartzite. 
Martite-quartzite. 
Sapphirine(?)-enstatite-quartzite. 
Conglomeratic gneiss. 
!Muscovite-2nei.ss. 
Biotite-gneiss. 
Hornbiendic quartz-pyroxene-gneiss. 
Calciphvre. 
Crystalline limestone. 
Tourmaline-quartz-rock. 
This list should be compared with the list of minerals contained in 
these rocks given on page 325. 
In Jhabua the actual 'country' of the two deposits \Tsited consists : — 
at Kajlidongri of sericitoid phyllites. usu lly separated from th-^ o'e-b"dy 
bv small th ckness o' arrlllaceous-sandy rocks : and at Rambhapur of 
siliceous crystalline limestone. 
In Xarukot, at the single occurrence of the rocks of the gondite series, 
the actual ' country ' of the manganiferous rocks consists of the banded 
gneisses, mentioned on pag*^ o^2>, with which they are so intimately associ- 
ated ; whilst the complex consisting of these interbanded manganiferous 
rocks and gneisses is surrounded by and inv aded by porphyritic biotite- 
granite. 
Finally, it remains to give a list of the rocks found intrusive in the 
rocks of the gondite series. They are nearly all coarse-grained rocks, 
allied to pegmatite, and owe their peculiar composition as regards the 
minerals they contain to the fact that they have passed through rocks 
