Nokta FoRs Gold, a Gold Cube, 2 Keene Sluices and Lord only knows how many pans....not to mention a load of other gear my wife still doesn't know about!
Pictures are blurry when I try and zoom in but looks like iron stained quartz to me, could be calcite, that will be easy to tell, see if a steel knife will scratch it, if it does its calcite, if it doesn't its quartz.