So true! i log for a living and often find myself rolling over a rock with my skidder to look at some seam of quartz , smashing rocks with my splitting maul (that i drive felling wedges with, i have a hand lens on my skidder so now im only driving out of the woods with really interesting samples to crush and pan later. There seems to be a contact between the abundent metamorphic bedrock and a granite intrusion where i have been this summer...pretty interesting,,, (to me)