It often forms in nodules which resemble cauliflower heads

Shape: Rectangular Tablet

Product Type: Silver Ring

Color: Black with Rainbow flashes

Color: Golden Yellow

Ammonite Fossil | Polished Half Obsidian It often forms in nodulesYou will receive 1 of the pictured Ammonite halves. These are perfectly fossilized and highly polished natural Ammonites from Morocco. They are a perfect for gift for a new fossil collector. Ammonites are perhaps the most widely known fossil, possessing the typically ribbed spiral form shell. These creatures lived in the seas between 240 65 million years ago, when they became extinct along with the dinosaurs. They belong to a group of predators known