Shards can be traded in for TMs at the rainy route near Soleacon Town.
yellow shard and red shard and green shard
Shards are different stons.
Underground
yes
The color shards you can find in Pokemon Platinum are Red, Blue, Green, and Yellow Shards.
They can't be bought. You can find them underwater, or attached to wild pokemon. Chinchou have yellow shards, Clamperl have blue shards, Relicanth have green shards and Corsola have red shards.
Green shards are found underneath the water (or in the sand on islands) while diving.
You trade them for tms from a lady in pastoria
There are four shards in Pokemon Platinum- red, blue, green and yellow. They can all be found in the Underground.
if you have to trade shards then trade Pokemon with people eqiupe it to a Pokemon your trading and theres shard trading make sure the other trainer has equiped a shard to the tradable Pokemon
The green shard can be traded for a leaf stone if you talk to the Treasure Hunter on Route 124. Any shards can be traded in for an evolution stone. Yellow Shards = Thunderstones Blue Shards = Water Stones Red Shards = Fire Stones Green Shards = Leaf Stones However there are no shards that allow you to receive a Moon Stone.
There are four shards in Pokemon Platinum which are the red, blue, green and yellow shards. These can all be found in the Underground and they are also held by certain Pokemon. I know that Corsola can hold a red shard and that Relicanth can hold a green shard. The shards can be traded with various move tutors who will teach your Pokemon an attack in exchange for a certain combination of shards. The three move tutors are found on Route 212, in Snowpoint City and in the Survival Area.