A. Apatite (calcium triphosphate): This mineral makes up the bones and teeth of vertebrates and the shells of inarticulate brachiopods. Calcium phosphate looks chalky when new, but can darken to black ...

Brachiopod hard parts have excellent preservation potential. As a result, the Museum’s Brachiopod collection has more than 300,000 specimens, including 10,000 type and figured specimens. Uniquely, the ...