Gold nugget or dog head gold was a Chinese term for some naturally occurring deposits of impure gold that usually consisted of a combination of pure gold, quartz, and other minerals.
It was said that the shape of such gold deposits was similar to the head of a dog, hence the name, but in foreign countries, it was sometimes called horseshoe gold, because foreigners thought it looked like a horseshoe in its primal state.
Whatever one called it, such natural gold deposits were extremely rare and precious in every age and country.
Li Du stopped his motorcycle and went to the puddle to think about how to dig it out. Of course, the water in the hole was frozen into ice and had not melted yet.
The gold happened to be right under the pool. To dig it up, he had to break the ice.
Li Du took out the pistol he was carrying and tried it. He tapped the ice with the handle of the gun. The ice made a dull sound. Obviously, it would be difficult to break the ice.