Igneous, Metamorphic, and Sedimentary Rocks

These rocks were collected from various locations. Most were found while helping my mother put river gravel in her driveway. She had 55,000 pounds of gravel delivered and I found several interesting rocks that had been worn by water and other mechanical means. One of the rocks was picked up in Colorado by my mother and is "on loan." And, I brought back some of the rocks from the desert near Riyadh, Saudi Arabia.