While there is mica there it is very easy to pan out when using dial 1000 hand soap the first wash and then this miracle i discovered doing gold floatation experiments called simple green stainless steel polish on the second wash just spray it directly on the dried materials left from the first and the gold will literally float once it touches the water surface.That looks like gold colored mica. It looks a lot like gold. Here's how you tell the difference. Take a small flake of it and put it on a hard surface. Take an ordinary straight pin and stick it in the flake. Mica will shatter. Gold will flatten.