Where I can find different types of stones? Where I can find a metal coat for my onix?

Question

I have different types of pokemon that can be evolved only by stones like water stone, leaf stone ec.

Comments

Why was this voted down? It's a perfectly valid question.

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Amazing, no good answer even after 8 months time. People just don't read the tags.

Answer 1

The following trainers will randomly give you the following stones as a Gift:
- Schoolboy Alan (Route 36) Fire Stone
- Fisherman Tully (Route 42) Water Stone
- Lass Dana (Route 38) Thunder Stone
- Picnicker Gina (Route 34) Leaf Stone

You only have to call them once a day and within few days of everyday calling you'll get the stones.
And for metal coat if you want to try to be lucky then :
Held by wild Magnemite (2% chance)
Or else wait till SS Aqua and/or trade with the person in power plant in kanto and his magneton will have a metal coat.
Hope I helped!
Source1

Source2

Answer 2

Http://bulbapedia.bulbagarden.net/wiki/Type-enhancing_item
this will be helpful for finding metal coat