148 lilDDLEMISS : THE GE0L0G2 OF [DAB STATK. 



ment of them as magniatic or oilier segregations. Limonite is 

 found in the Ahmednagar Sandstone locally (see j». 111). 

 Jade-like Mineral : See Pyroxkm:. 

 Kankar, Kaolin: See Builuim; Material, etc. 

 Magnesian Minerals: Considerable beds of minerals contain- 

 ing much magnesia have been discovered in the State during my 

 survey. They will be found described in genera] Icrnis under the 

 heading "Magnesian Phase associated with the Delhi Quartzite" 

 (p. 97). They embrace steatite (talc), asbestos, serpentine, 

 bowenite, magnesite and dolomite: and with them is included 

 chromite. Steatite is the best represented, and though only of 

 variable quality from medium to good, so far as known at present, 

 is in such large amounts that it is reasonable to hope that some 

 economic use may be found for it at no distant date in Indian 

 markets. The largest development known, as found in the hollow 

 in the Delhi Quartzite hills on the footpath between Dev Mori 

 and Kundol, amounts to over 2,000,000 tons down to a vertical 

 depth of 20 feet over a surface area, of about 1 mile by 200 feet. 

 It lias been briefly described with plan and sections in a short 

 note by me (Record*. Geological Survey of India. Vol. XLII, pt. 1, 

 1912), and other genetically allied extensive deposits are known 

 at (Jhanta (an outlying patch of Badra State enclosed within Idar 

 territory) also in the knee-shaped bend of the hills between Kokapur 

 and Vartha, and S.W. of Thuravas. As already indicated the 

 quality is fair to good, but somewhat flaky, so that it does not 

 readily grind to an impalpable powder. Hut some, specimens are 

 much better than others, so that it is rea sonable to hope that 

 detailed surveys with adequate opening up of all the deposits 

 where exposed, and also where covered, might reveal seams of purer 

 material. Steatite is now put to such varied uses other than as 

 French chalk and for gaslmrners that, with a little enterprise on 

 the part of any firm exploiting it, it should yield a valuable out- 

 turn. An extension of the railway from Modasa towards Meghraj 

 would greatly increase the chance of such a mineral becoming 

 utilised. 



Besides steatite, it is fairly certain that any adequate opening 

 up of the area would yield other minerals of value. Among these 

 is asbestos of the hornblende variety, at present known from several 

 pits sunk in the Dev Mori-Kundol area (see p. 100). ThiB 

 again is a mineral of ever-increasing usefulness in the arts. Since 



