Found these bits yesterday, the first piece of quartz i just notices whilst classifying, and the little piece remained in the pan right down to the end although it doesnt seem that heavy for its size. very metallic looking, the light reflected them straight away and not magnetic. also the single piece is a little on the greener side of what shows in the pics, more like the color of the pieces in the quartz. Both the bits look to be the same whatever it is.
