Annals and Antiquities of Rajasthan, or the Central and Western Rajput States of India v3.c43.t1.404

v3.c43.t1.404

I was much surprised to find the plain strewed with agates and cornelians, of every variety of tint and shape, both veined and plain, semi-transparent and opaque, many stalactitic, in various degrees of hardness, still containing the fibre of grass or root, serving as a nucleus for the concretion. There are no hills to account for these products in the black loam of the plains, unless the Chambal should have burst his bed and inundated them. Nor are there any nalas which could have carried them down, or any appearance of calcareous deposit in the soil, which when penetrated to any depth, was found to rest upon blue slate.