A "Gold Nugget" is a naturally occurring piece of gold that has not been refined or processed. These nuggets can vary in size, shape, and purity, often found in riverbeds or areas where gold deposits are present. They are formed through geological processes over millions of years, where gold is eroded from rocks and concentrated in sediment. Gold nuggets are highly valued for their rarity and beauty, making them sought after by collectors and jewelers. They can be sold as raw material or crafted into jewelry. The discovery of large gold nuggets has historically led to gold rushes, attracting prospectors and miners to specific regions.