If You Find a Rock by Peggy Christian and Barbara Hirsch Lember

"If you find a rock, a nice flat, rounded rock that sits just right in the crook of your finger, then you have a skipping rock.  Maybe you find a soft white rock-a rock that feels dusty in your fingers.  Then you have a chalk rock,...Or you might find a big mossy rock by the side of a long, steep trail.  Then you have a resting rock..."   Beautiful illustrations and text explore the many kinds of rocks and the many ways we can explore and play with this abundant and wonderful natural resource.