In the base game you would go to either build or buy mode and lay out all of your collected minerals and demolish them. Or you could directly just in your Sims inventory click and drag to the "sell item slot" and get the exact amount of cash for the mineral or gem. Different story on the Expansion, "Sims 3 World Adventures" You can still use the methods above, but new additions have been made. In a travel location go to the relic store and sell the gems, minerals, and artifacts you find for 5% to 15% more cash then the base game's methods.
Chat with our AI personalities
No
No you may not love you.
you doggy
Gems randomly appear and you can't predict when and where one will turn up.
The Sims 3 Wii does and will never have any expansion packs. It is really different and worse than the other Sims 3, so I recommend you sell it and buy the Sims 3 for the computer instead.