I'll try Hafnium, found in Zircon. On Fri, 1 Jul 2011 07:07:51 -0500, David D. Hillman <[log in to unmask]> wrote: >Hi folks - Here is the Friday Element Quiz Question: > >The Question: > >This element is used for research purposes only. There are no commercial >outlets for the element as Sodium can be used to accomplish the same tasks >at a much lower cost. This element is more expensive than gold or platinum >(*** per my reference source). A pure sample of this element was not >produced until 1928. Apples contain 50 ppm of this element but plays has >no known biological role. > >Bonus Question: Name the mineral that contains this element. > > --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 16.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives For additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------