Crystalline sponge gold
Northern California 
 
This is a super nice sponge gold nugget is from northern California. It is very rare and hard to find for sale as collectors love the fine texture of sponge gold. The gold specimen formed a natural hold in the middle and the individual gold sponge like crystals are beautifully displayed. This sponge gold specimen in a prim example of ultra rare sponge gold from California. 
 
15 x 15 x 4 mm 
0.70 grams