AMM268 Ammonite Fossil (South Dakota) Rainbow Sapphire The lot includes golden yellow

The lot includes golden yellow rocks that are about 0

This polished cabochon features brecciated patterning in dark green and maroon jasper

The nodule features needle sprays

Tumbling material displays green and pink colored granite

and pink jasper

AMM268 Ammonite Fossil (South Dakota) Rainbow Sapphire The lot includes golden yellowThis 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. The surface of this fossil shows complex suture patterns in overall shades of warm brown, with little spots of red or purple iridescence. It has a smooth outer surface with a sharp spine. 3" x 2. 25" 58g Sphenodiscus