AMM272 Ammonite Fossil (South Dakota) Tigereye Botswana Agate polished cabochon featuring

Botswana Agate polished cabochon featuring rare eye formations in white and tan floating in gray agate with banding

It comes in a variety of colors from silver-grey to reddish brown

or some golden yellows

31 mm x 25 mm

AMM272 Ammonite Fossil (South Dakota) Tigereye Botswana Agate polished cabochon featuringThis ammonite specimen comes from South Dakota in the Cretaceous period when the area was submerged by the Western Interior Seaway millions of years ago. They are typically preserved in hard concretions that must be carefully removed. This sizeable fossil shows complex leafy suture patterns over almost the entire surface. Mostly dark brown, there are some spots of preserved shell showing red, yellow, and green iridescence. It has a fairly well