They're looking for Adamantine.
That's a general and/or fictional substance. Did you mean:
a) Adamantium: Wolverine's metallic skeletal covering (fictional)
b) Adamantite: A metal found in the Outlands in World of Warcraft. (fictional)
c) Adamantane: A big hydrocarbon known for its interesting diamond-like structure. (real)
"The first plausible use for the plug computer is to attach one of these gizmos to a USB hard drive. Voila, you've got a network server. Cloud Engines, a startup, has in fact built a $99 plug computer called Pogoplug, that will let you share the files on your hard drive, not only in your home but also anywhere on the Internet.
"Look! There! Evil!.. pure and simple, total evil from the Eighth Dimension!" -- Buckaroo Banzai