Cleoniceras Ammonite Large Rhodonite Magnesium and iron are common

Magnesium and iron are common in rhodonite

This specimen comes from a gold mine near West Kalimantan Indonesia

This ammonite is from Madagascar of the genus Cleoniceras

These pieces are polished into coasters

5 L X 1 W X 2

Cleoniceras Ammonite Large Rhodonite Magnesium and iron are commonAmmonites were ocean dwelling mollusks that lived from the mid Devonian (388 million years ago) through the Cretaceous (66 million years ago). The closest living relatives found today are octopus, squid, and cuttlefish. These fossils are found in sedimentary rock layers of limestone, clay, or shale. The mineral composition of the shell can include iron, manganese, and aluminum, creating vibrant colors. You will receive the exact item pictured.