"Titan and Earth have much in common, but not when it comes to sand.
On Earth, sand grains form by breaking things down, but on Titan, the opposite may be true - with much of the sand a product of building things up."

Read more (http://www.nasa.gov/mission_pages/cassini/whycassini/cassinif-20080502.html)

Titan has water ice rocks...

Hum,
Yeah, the term `sand` should be `taken with a pinch of salt`.

Ironically, a pinch of salt is like sand.

And 'breaks down' ice..

Coincidence?..:shrug: