Harpoceras Ammonite | Germany Healing 87 ppm gallium

87 ppm gallium

London: Hamlyn

Argentenian Blue Calcite is a transparent to opaque stone that is pale blue to medium blue

This Banded Zebra Calcite has been previously dipped in an acidic formula which gives it the "wet shine" as opposed to a synthetic coating

due to certain impurities in the crystal

Harpoceras Ammonite | Germany Healing 87 ppm galliumHarpoceras sp. Early Jurassic (180 MYO) Posidonia Shale Holzmaden, Germany Ammonite approx. size: 8. 5" x 7" Plate approx. size: 13. 5" x 10. 25" This Harpoceras ammonite from the Posidonia Shale in Holzmaden, Germany has been compressed on black slate and is partially pyritized. Ammonoids are a group of extinct marine mollusk animals in the subclass Ammonoidea of the class Cephalopoda. These mollusks, commonly referred to as ammonites, are more