330 
MANGANESE DEPOSITS OF INDIA : GEOLOGY. [PaET II : 
Owing no doubt to the fact that practically only one occurrence of the 
gondite series has been examined in each of the other two areas where this 
series has been found, many of the rocks found in the gondite series as 
represented in the Central Provinces have not been found in Jhabua 
or Narukot. Whilst, owing probably to original differences in the com- 
pcsition of the sediments deposited in these two areas, many rocks are 
found in them that have not been found in the gondite series as 
represented in the Central Provinces. In the Central Provinces the 
calcareous manganese-bearing sediments that gave rise to the 
piedmontite-limestones were deposited separately from the practically 
non- calcareous sediments from which the typical gondites were pro- 
duced ; whilst in Narukot the calcareous and non-calcareous manga- 
niferous sediments were deposited in alternating layers, so that, now 
that tliey have been metamorphosed, the typical rocks of the gondite 
series are found associated with rocks that it is necessary to consider as 
a part of this series, but which are to be regarded as an abnormal 
development of the series. In the same way in Jhabua, as represented by 
the one deposit at Kajlidongri, the original manganese-bearing sediments 
must have been largely of the type that gave rise to the typical rocks of 
the gondite series of the Central Provinces with occasional layers of more 
calcareous nature. The following is a list of the rocks of the gondite series 
as represented in the Kajlidongri deposit in Jhabua State : — 
List of the rocks found in the gondite scries as represented in Jhabua. 
Oondite 
Spessartite-roch. ^ 
Apatite-gondite. 
Apatite-spessartite-rhodonite-rook. 
Rhodonite-:! patite-quartz-pvroxene{yellow)-rook with some spessartite 
Quartz-plagi'clase-spessartite-piedinontite-rock. 
Braunite-spessartite-qnartz-arsenate-rock 
Amphibole-pvroxene ( yellow)-quartz-rock 
Whilst the following list shows the rocks found in this series as 
represented in Narukot State, Bombay : — 
List of the rocks of the gondite series as represented in Narukot. 
G indite. 
A palite-cjonditii 
Pied ontite-apatite-gondite with a little pyroxene. 
Pkdmoritite-'i paiile-sfefisnrHl^'.-rork. 
Pyroxene (yollow)-apatite-gondite. 
Caloite-goiidite with |)yroxene, a])atite, and wolhistonite. 
Rh()donite(?)-j)yroxene(vellow)-gondite. 
Caleit.o-rhod()nit('(?)-pyroxont-(vellow)-gondito. 
Pyroxeno(yellowi«Ii)-gondite with caloite 
Calcite-gondite with pyroxene, apatite, and wollastonite. 
iVollastonite-apatite-calcite-gondite (or crystalline limestone). 
Piedmontito-wollastonite-apatite-calcite-gondite. 
