Steven doesn't give you a pickaxe, but he gives you a Beldum...
Steven gives it to you on the bridge to the west of Fortree City.
up be hind where the cave is
Steven lives is a house in Mossdeep City. His house is northwest of the Pokemon Center. After you defeat him, you go to his house to get a Beldum.
Go to the top-left corner of Mosdeep city and go inside the house. There's Steven, who will notice you and give it to you
After defeating Team Magma at the Mossdeep Space Center, you'll get it from Steven.
There is no PICKAXE in Pokémon Emerald.
There is no such thing as an emerald pickaxe in Minecraft.
You need a Iron or Diamond Pickaxe to mine Emerald.
I believe you can get the rematch with Steven in emerald by battling the Elite four again.After that you can battle Steven.
Mossdeep City............
I think you need an iron pickaxe. But it's much easier to just get emeralds from trading with villagers.
In Pokemon Emerald, Steven is no longer the Champion. He has been replaced by Wallace, former Sootopolis City Gym Leader. Wallace is replaced by Juan. Steven plays a different part in the story.
...... stewen in emerald isn't a elite champion. there is wallace.
You have to get the Devon Scope from Steven.
in the cave by the ocean!
You get it from Steven Stone in Mossdeep city.
Try to complete your Pokédex.