28. Lines in the Sand Nov 282006 Patterns formed in the sand from water running over the sand. I imaging the colours are different minerals and such leaching out of the sand, but I am not an expert so can’t say for sure. November 28, 2006 Posted by cempey at 2:07 pm Nature Add comments Leave a Reply Cancel reply Your Comment You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong> Notify me of follow-up comments by email. Notify me of new posts by email.