Just got a new folder today with micarta scales. I've only had micarta on fixed blades before and it was polished/sealed. I immediately took the new knife apart to tinker and to clean and lube it. A while after lubing the pivot, I noticed that the micarta had absorbed some oil and darkened around the pivot bolt. Not being overly familiar with micarta (or with lubing my knife for that matter) I wanted to ask if oil could harm micarta over time by breaking down the resin or anything like that.