Page:Provincial geographies of India (Volume 1).djvu/81

This page needs to be proofread.
iv]
GEOLOGY AND MINERAL RESOURCES
61

limited, however, by competition with cheaply made tiles.

Gypsum occurs in large quantities in association with the rock-salt of the Salt Range, but the local demand is small. There are also beds of potash and magnesian salts in the same area, but their value and quantity have not been thoroughly proved.