This NPC does not sell bone chips. He sells red,blue,yellow,green,clear,purple,white, and black chips. I saw another Gob NPC in San Doria that sells the exact same chips but no bone chip there either. I have no idea what these colored chips are for.
The colored chips are used with Infinity Cores (dropped by mobs in Dynamis)on the Strange Apparatuses that can be found in Shakrami Maze, Crawlers Nest, Dangruf Wadi, just to name a few places. When the two items are given to the apparatus you get various different items (clusters all the way up to level 70 equipment). It also asks for a password, but I personally don't know how they are aquired or if they change the outcome of the items you get.
the password mentioned by Somathataru does not change the outcome of the transaction. however, the password allows you to keep using the same infinity core, making it an actually "infinite" the password varies from person to person, so don't bother hounding anyone for their password.
What I meant is they should change it, they have this NPC down as selling bone chips, he doesn't. Unless you click on his name and notice the list, but I didnt notice the list, so I went out of my way to find this NPC for nothing.