Here is a wonderful slab of matrix with quite a bit of native gold running through it. 
What I find of interest for the specimen collector, is the line of cubic pyrite visible separate from the gold. 
Most gold prospectors know that just because you find "Fools Gold" aka pyrite, does not mean there is not gold present, and this is a wonderful example. 
You can clearly see the saw marks on each side of the slab, I have left it as I purchased it, but the new owner may want to polish the piece to allow it to show better. 
Or someone may want to cut it up and turn it into cabs for jewelry, but I do hope it stays a specimen.