Ammonite Fossils with Spiked Spines / 1.5-2.5" AVG - 1 KILO LOT not select Avg Size Range: (15 to

Avg Size Range: (15 to 16 inches)

In the case of prophecy stones

Each sheet may vary in types of stones but each are labeled

Average size range: 40 to 60 millimeters

while commonly described as a jasper

Ammonite Fossils with Spiked Spines / 1.5-2.5" AVG - 1 KILO LOT not select Avg Size Range: (15 toQuantity: 1 kilogram Average size range: 1. 5 to 2. 5 inches Ammonites were spiral shelled animals that lived hundreds of millions of years ago, and are most closely related to modern day octopi and cuttlefish than mollusks. The fossils for these species are so widespread that paleontologists and geologists use them as index fossils to determine when rock layers formed.