download all originals (max 500 MB)| Name | Format | Size | Date |
|---|---|---|---|
| amor selenium | Unknown | 222 b | 1994-06-02 |
| calspar 1 | Unknown | 222 b | 1994-06-02 |
| calspar 2 | Unknown | 222 b | 1994-06-02 |
| carbon dioxide | Unknown | 222 b | 1994-06-02 |
| flourite | Unknown | 222 b | 1994-06-02 |
| graphite | Unknown | 222 b | 1994-06-02 |
| lapis lazuli | Unknown | 222 b | 1994-06-02 |
| sodium chloride | Unknown | 222 b | 1994-06-02 |