The process of opalization refers to something turning into an opal — like for example, a big part of this fossil. Opalized ammonite fossils are formed through a unique geological process ...

The shells of ammonites shine in iridescent red, blue, orange and green caused by reflection of light from the layers of aragonite and eons of pressure. With a finish like mother of pearl or opal ...

Naomi Sarna has been working on a grapefruit-size sculpture of a Siamese fighting fish, coaxing it from a piece of blue ...

Throughout biblical history, the Moabites and Ammonites symbolized rebellion against divine order and a rejection of God’s moral law. These nations, born from the incestuous union between Lot and his ...