Gear melting system which can access from backpack interface.
Purple gear melt into 2 blue crystals, and 4 green crystals. Purple shard can get 1 blue and 2 green.
Orange gear melt into 5 purple crystals and 10 blue crystals. Orange shard can get 1 purple and 2 blue.
Melting a red shard to get 1 red crystal and 2 purple crystals.
Set pieces (thunder wind sea fire) melt into 15 orange and 30 purple crystals.