AMM272 Ammonite Fossil (South Dakota) Tigereye 31 mm x 25 mm

31 mm x 25 mm

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

and a center drill hole to fit a tealight

48mm x 40mm

35 geode/pieces in flat

AMM272 Ammonite Fossil (South Dakota) Tigereye 31 mm x 25 mmThis 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