Every once in a while, I go out digging into a sedimentary cliff and collect the various quartz chunks I find. Well, one of these is a yellowish color, about one centimeter thick and it makes the pinpointer make noise on my ACE 250. Could there be some gold ore in it? Do you think I should crush the mineral to dust and pan it, or save it for a specialist's point of view? The quartz is very hard and heavy compared to the other specimens. It's veins are in the 1 cm vertical angle, not longways. There is alot of sparkle in it. I cannot chip it with pliers. Any ideas? I'll take a photo of it this weekend.