No Fire: Set after firing. Each Orthoceras fossil stone has a "spine" on the top of the stone and an uneven bottom. The thickest part is 13mm. Natural gemstones can vary in thickness. If you need to know the vertical dimension of a specific gemstone, please contact customer service.
Straight horn ‘Orthoceras’ are believed to be an excellent healing stone. They are also believed to give luck to the wearer.