Thunderstone
Where to find Thunderstone in Platinum Emerald. Shops sell it for 2100.
- New Mauville Inside: on the ground
- Celadon City Department Store 4F: shop
- Power Plant: on the ground
- Power Plant: hidden
- Sunyshore City Area 1 (outside): on the ground
- Route 229: hidden
- Solaceon Ruins Area 18 (cave): hidden
- Resort Area Area 1 (outside): hidden