you don't. you only get the dark stone
You can only find a Magma Stone in Pokemon Black 2, White 2, Pokemon Diamond, Pearl, and Platinum. It is not available in Pokemon Black and White.
you find a secret place you find a legenary pokemon that holds this stone defeat it you get it.
find a sun stone.
route 6
You find it in the chargestone cave
You don't. There's no such thing as a ground stone
in pokemon black and white
the light stone isn't in Pokemon white only the dark stone in white and the light stone in black
The Black Stone is on display at Nacrene City's museum.
To find a shiny stone you can trade a pokemon thats holding the shiny stone or maybe someone in your pokemon game will give you one. If you use a Shiny Stone on Minnico it will evolve into Cinnico
in white two, you can find it in the desert resort
it is in the desert near relic castle