The soft, weathered limestone is almost unreadable, like hard candy that's been sucked clean.

That is also not consonant with the weathered limestone of the facade.

Against the bank I built a cascade of weathered limestone that incorporates an upper pool the size of a washbasin.

Fresh white surfaces showed where the stained brown of the weathered limestone had fractured, and only the smallest of plants had yet gained a foothold in this tumbled pile of rock, unlike the thick growth of shrubs that blanketed the rest of the hillside.

For an hour he led them away from the Dandera rier and up over the high ground above the valley, into an area of thick scrub and up-thrust ridges of weathered limestone.

It derives its name either from the red tones of its weathered limestone, after the better-quality white limestone casing was removed, or perhaps from the red graffiti and construction marks scribbled on its masonry in ancient times.

The Dinantian (Lower Carboniferous) limestones encountered in wells in the U.K. sector are generally tight and non-porous although there are reservoir possibilities in weathered and fractured limestones.

Though the presence of extensive 4th Dynasty repair work to the Sphinx and associated temples is acknowledged by egypotologists like Lehner and Hawass among others, Schoch contends; " Therefore if the granite facing is covering deeply weathered limestone, the original limestone structures must predate by a considerable degree the granite facing.