661
| Material | Number | Origin | Size |
Zeiringite
[Aragonite with aurichalcite] | 661 |  | Greece, Laurium mines |
| 5.9 x 4.5 cm |
|
734
| Material | Number | Origin | Size |
| Red calcite | 734 | | Greece, Skyros Island |
| 5.9 x 4.5 cm |
|
741
| Material | Number | Origin | Size |
Zeiringite
[Aragonite with aurichalcite] | 741 | | Greece, Laurium mines |
| 5.9 x 4.5 cm |
|
769
| Material | Number | Origin | Size |
Chinese writing rock
[porphyre] | 769 | | Greece |
| 5.9 x 4.5 cm |
|
 |
|
