Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Lakes of Ounianga' has mentioned 'Sandstone' in the following places:

Occurrence Sentence	Text Source
The aesthetic beauty of the site results from a landscape mosaic which includes the varied coloured lakes with their blue, green and /or reddish waters, in reflection of their chemical composition, surrounded by palms, dunes and spectacular sandstone landforms, all of it in the heart of a desert that stretches over thousands of kilometres.	UNESCO