Did you try binding it using those new cheap 2 stars synths? There's one for each masterbook 4, like :
http://xivdb.com/recipe/31502/Sewing+Needle
or
http://xivdb.com/recipe/31501/High+Mythrite+Nugget

All cheap to make, and all useless. Can't be spiritbound, as not equipable. Not crafting material, and not desynthable either. I can't see an other reason for them to be around than providing spriritbinding.
The materials are 1 star to gatherers, so good way to bind stuff too.