Fossil Leaf (Mimosite coloradensis) - Green River Formation Metal: Painted Brass

Metal: Painted Brass

leading many to believe they are one of the earliest forms of artisan craftsmanship

As you can see in the photos

often containing magnesium or aluminum

Fossil Leaf (Mimosite coloradensis) - Green River Formation Metal: Painted BrassThis fossil comes from the famous Green River Formation, living around 50 million years ago, during the Eocene. Related to the beech family, the best known group of this family are the oaks. The fruit of this tree usually produced a nut containing a single seed. These are often referred to as acorns! Length: 2. 3 x 2. 5 in. Weight: 5. 6 ozFossil Type & Species: Compression & Mimosite coloradensisLocation: Green River Formation, United StatesYou will