just an FYI - Beryllium is certainly not a banned material. In it's pure and alloyed forms it is used all the time in aerospace applications, and will be for a long time because it has unique properties.

OSHA and the DoD are now more sensitive about its handling and machining and there are warnings, but nothing really crazy.
Fine Be dust or BeO is what you need to be careful with as it can cause lung issues and cancer. Handling solid Be isn't an issue at all, but it is recommended to treat it like you handled Pb....don't eat, don't smoke, don't lick your fingers, and wash your hands well after handling it.

Trivia bonus points - some 1911 brands used to use BeCu as their frame material and it is used in musical instruments like tambourines, too.



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If I should ever die, God forbid, let this be my epitaph: THE ONLY PROOF HE NEEDED FOR THE EXISTENCE OF GOD WAS MUSIC - KV