UNOBTAINIUM
History
Also known as oopsium, thatsalaughium, inyourdreamsium, notavailium, ucantbeserium and nolongerproducedium, Unobtainium is the most costly element known to man. We can loosely define it as any metal that is specified by Engineering and unavailable to Purchasing. Too often, materials are selected for an application solely on the basis of chemical, physical or mechanical properties. When an obscure material, is specified in an odd quantity, size, product form, temper or specification, you’ve got Unobtainium.