A very rare sight to see a sponge gold in quartz specimen from Idaho. This is a remarkable gold in quartz piece and hefty at 23.8 grams (366 grains). It has a large amount of gold to quartz ratio and a specific gravity test calculates a total gold content of 17.3 grams of contained gold. It measures 1-1/4" by 1" (33mm by 24mm). A rare and special sponge gold in quartz piece.
Weight: 23.8 grams (366 grains)
Dimensions: 1-1/4" by 1" or 33mm by 24mm.