This is a beautiful tumbled slabbed gold in quartz specimen from the Mother Lode region of California. It is slabbed gold in quartz (also known as jewelers rock) that has been tumbled. There is no opticon on this gold specimen. This one has visible gold in fine veins on all surfaces of the specimen and a nice attached piece of gold at the top. Make this beautiful slabbed gold in quartz into a piece of gold in quartz jewelry or add it to your collection. The weight is 11.9 Grams and the size is 1.75" x 1.25" 3/16" thick.