So apparently, there are precious stones in sand. Just goes to show that even the mundane, ordinary, and plentiful -- like sand -- is really quite special once you take the time to learn about it and appreciate it. The most gorgeous pictures are at the link.
They are gorgeous but not realistic for many people. If some fabulously rich person does buy them (Bill; but even then this is a bit out of his zone) it would only be for what it says about your status.