there is no crystal stone
Crystal
Blazing Shard, Blazing Stone, Blazing Gem, Blazing Crystal. Frost Shard, Frost Stone, Frost Gem, Frost Crystal. Lightning Shard, Lightning Stone, Lightning Gem, Lightning Crystal. Lucid Shard, Lucid Stone, Lucid Gem, Lucid Crystal. Power Shard, Power Stone, Power Gem, Power Crystal. Dark Shard, Dark Stone, Dark Gem, Dark Crystal. Dense Shard, Dense Stone, Dense Gem, Dense Crystal. Twilight Shard, Twilight Stone, Twilight Gem, Twilight Crystal. Mythril Shard, Mythril Stone, Mythril Gem, Mythril Crystal. Bright Shard, Bright Stone, Bright Gem, Bright Crystal. Energy Shard, Enerfy Stone, Energy Gem, Energy Crystal. Serenity Shard, Serenity Stone, Serenity Gem, Serenity Crystal. Orichalcum, Orichalcum+
Your local jeweler can help you determine whether or not the crystal coloured stone you have is a diamond or not.
Mt.moon
Quartz crystal.
Pokemon crystal? Well...in Pokemon Diamond it's a stone dice that powers up rock type moves.
no it does not evolve with a fire stone.
water stone
You can get the Hard Stone from Arthur, who is located on Route 36 on Thursdays.
You can't evolve Togetic in Pokemon Crystal as Shiny stones did not exist in Crystal. Togekiss was also introduced in Gen4. Crystal is Gen 2?
Pokemon Liquid Crystal is not a game. However, in Pokemon Crystal, one can find a water stone on Route 25, along with most other evolutionary stones available within the game.
I geted it from Alan Schoolboy.