Sea biscuits, with their intriguing shapes and historical significance, are sought-after marine fossils. But are they rare? By exploring the rarity and value of sea biscuits, we can understand their place in the world of fossils and collectibles. Discover the factors that contribute to the rarity of sea biscuits, from geological conditions to fossilization processes. Embrace the value of these marine treasures and let their rarity enhance your appreciation for the natural history of Earth’s oceans.