Here is a natural state Gold Cow Head specimen on matrix stone. This was examined by the Gem Lab. I tested the gold with acid and it is approximately 18k. It has been said that when looking at natural gold you can see designs. This natural state Gold specimen has an auction estimate of $2,500-$3,500 and it will be auctioned to the highest bidder with an opening bid of $1 with No Reserve and a 25% auction fee will be added to the winning bid.