calcite

607

carbonate fluorapatite

607

phosphorite

607

sandstone

607

plaster

5

silicon

3

boxstone

604

bivalve

259

fossil

200

Gastropod

129

vertebrate

45

mollusca

24

shell

24

invertebrate

19

shark

14

whale

10

cetacean

8

tooth

5

wood

5

annelid

3

selachian

3

barnacle

2

brachiopod

2

crab

2

crocodile

2

mollusc

2

phophate nodule

2

bird

1

cephalopod

1

ostrocod

1

phosphatic nodule

1

polychaete

1

turtle

1