Mined from: LaSalle Co., Illinois, USA
Geological Age: 419.2 to 358.9 mya
Description: Brachiopods are composed of two halves which are called valves and were similar to a clam. Brachiopods have internal feeding structures that draw in water to then filter out any particles that they could eat. Brachiopods live in cold marine environments like polar seas.
Approximate Size of 1 piece: 20mm x 18mm x 14mm
Approximate Weight of 1 piece: 7g
We do our best to buy quality products- although not every rock is the same. If you choose to purchase the "staff pick option", we will select the best of the batch for you. Otherwise, it will be at random from the larger batch we have in stock.