User blog comment:JakePT/Deception Out, Response Abysmal/@comment-737801-20120129184305/@comment-184.78.227.50-20120130041226

I'm not sure what the context is (and judging from the response to the book, I don't plan on reading it to find out...), but It's mainly the dust and vapor that are toxic. Solid beryllium metal should be fairly harmless, though I wouldn't want to have it in my household. It's actually a great material to make spacecraft out of, if you keep it out of the inhabited areas, because it's lighter than aluminum and more rigid than steel.