680
| Material | Number | Origin | Size |
Frosterley marble
Carboniferous Period | 680 |  | England, Weardale,
County Durham |
| 5.9 x 4.5 cm |
|
750
| Material | Number | Origin | Size |
Shipworm holes (Teredo sp.)
in petrified wood
Lower Eocene, Ypresian | 750 | | England, Sheppey Islands |
| 5.9 x 4.5 cm |
|
779
| Material | Number | Origin | Size |
| Puddingstone | 779 | | England |
| 5.9 x 4.5 cm |
|
888
| Material | Number | Origin | Size |
| Coral agate | 888 | | England |
| 5.9 x 4.5 cm |
|
 |
|
