Chalk (pronunciation: /ˈtʃɔːk/) is a soft, white, porous sedimentary carbonate rock, a form of limestone composed of the mineral calcite.
Monday, May 2, 2011
Paula Lloveras' photostream
Paula Lloveras' photostream on Flickr.
11.645 110427 BEACH
11.645 110427 BEACH , a set on Flickr.
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