I remember zelgo had a section on each relevant page for every material that could be used in a crafting recipe.

It would be very useful information to know what a particular material could be used to craft.

Such as a diamond could be used to make a gamble box at a certain NPC, and the same diamond could be used as a component to create an item or item(s) at one or more NPCs. 

I'm sure many players who find items - materials always wonder what it is good for. 

https://web.archive.org/web/20080809095917/http://www.lineagedb.com/item/

https://web.archive.org/web/20190111143428/https://www.zelgo.net/linweb/topic/read/831

heres some links the wayback machine is your friend