Please, don't touch RP2 items because it's possibly that somebody lock this tread by Eloraam request. Joke.
Silver? No. it should be rare item. I don't want create Blue Alloy Ingot only from Nikolite.
Lapis? No, there no recipe for artifical\industrial lapis lazuli. But small amount of some dust will be fine.
Its not that I mean specifically. You see, nicolite is blue. and shiny. what comes first to mind? For me it is lapis and silver