800 WYNNE: GEOLOGY OF THE SALT RANGE IN THE PUNJAB. 



The bi-pyramidal quartz crystals either transparent, reddish, or 



more opaque, found in quantities in the gypsum 

 Mari diamonds. „^^, . •,.,.,, t i • , ii -■, I^ 



of Man salt-hill, are worked into necklaces by the 



natives, consequently those longer than usual or more regular are valued 



to some extent. The mine in which the best are said to occur was 



closed when Mari was visited. Dr. Jameson (Report, page 206) says 



they were also found in the rock-salt ; but this has not been confirmed 



by any recent observations. 



Some of the opaque salt is often turned or cut into ornamental 

 Salt. utensils. 



Gypsum. 



The gypsum of the salt-marl exists in enormous quantities, and 



much smaller developments of the mineral are 



to be found among some of the other groups, 



chiefly as selenite in the shaly beds associated with the coal. It is, 



generally speaking, a pure sulphate of lime, and the only uses to which 



it is known to be applied are for mixing in a powdered state with mortar 



(as mentioned by Dr. Fleming) ; some of the more compact varieties 



near Sardi are turned to form plates or other rude ornamental utensils. 



Some use must, however, be made of the transparent variety, for it is 



reported to fetch Rs. 3-14 per maund at Lahore. 



f 



La VENDEE Clay. 



The lavender clay-ash or decomposed rock found with the volcanic 



rock of Nilawan, &c., is used by the natives as 

 Clay. . . 



soap or to assist in washing. 



Galena. 



A small quantity of galena, in little nests and crystals, is found 



disseminated through the dolomitic sandy rock 



of the escarpment at the top of Karangli hill. 



Here a sort of mine, some yards in length, leads out to the face of the 



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