The Plumb Fibreglass Handled Prospecting Hammer is known as the "Rock Hound" hammer. It features a polished face, a forged head, and a fiberglass handle. The hammer also has a cushioned grip. This combination of features results in a product that is both lightweight and durable, perfect for years of extended use.
If you're into amateur geology, this is the perfect hammer for you.
If you are a geologist or prospector, you might be interested in the wooden handle version of the hammer here