Rare Bone is an item in the “Loot” category (Items). It costs ₽5000.
In-game descriptions
| Diamond / Pearl · Platinum · HeartGold / SoulSilver | A bone that is extremely valuable for Pokémon archaeology. It can be sold for a high price to shops. |
|---|---|
| Black / White · Black 2 / White 2 | A bone that is extremely valuable for Pokémon archeology. It can be sold for a high price to shops. |
| X / Y · Sun / Moon · Ultra Sun / Ultra Moon · Let’s Go, Pikachu! / Let’s Go, Eevee! · Sword / Shield | A rare bone that is extremely valuable for the study of Pokémon archeology. It can be sold for a high price to shops. |
Where to find it
Not placed on the atlas maps (so far: Red/Blue and Generation 3).
Sources : PokeAPI (items, item_flavor_text, machines) · atlas · pokeemerald species_info.h