If by experience shard you mean experience SHARE........ Mr pokémon gives it to you when you talk to him later in the game.
Blue shard
You get the red shard from the red garados if you fail to catch it at the lakeof rage.
you give them to the guy that says shard de berry and he gives you berry's for them
The shard of bladestone is a stone that silver skeletons will commonly drop when you kill them.
sorry you have to trade it to Pokemon soul silver
Give it an experience Share and let another Pokemon battle for it.
One step equals one experience point for the Pokemon that are in the daycare centre
Soul silver is AWESOMENESS!! yes GET IT
You use it to learn moves in a house in Blackthorn city
According to Serebii.net there are 493 Pokemon in Soul Silver.
You can't do Pokemon contests in Pokemon soul silver.
Why Soul Silver is about the original Pokemon Silver game for game boy. Soul Silver has some more bonuses.