A friend recently expressed dismay about a family member’s hoarding habits. This made me reflect on my father's parents. My grandparents were not hoarders in the reality TV sense, as their home was always neat and clean. However, it was stuffed with various collections of objects they treasured, but rarely used. Where they hit the hoarder mark was with their gem and mineral collection. During the Depression, they studied the rocks they picked up on desert rambles in southeastern California. It was a…