Malachite Chunk is a trading item in 80 Days acquired by conversation choices on the Trans-Siberian Express if Passepartout has seen the mysterious couple boarding the train before Omsk.
| Seed | Buy in | Sell in | £ |
|---|---|---|---|
| 3 | Trans-Siberian Express | Honolulu | 720 |
| 6 | Trans-Siberian Express | Salt Lake City | 640 |