Greetings Vortex-l, I was looking for a MSDS sheet on Samarium Hexaboride...but..found an old 1979 patent. I know that Samarium Hexaboride is made from highly toxic material:
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=10&f=G&l=50&co1=AND&d=PTXT&s1=%22samarium+hexaboride%22&OS=%22samarium+hexaboride%22&RS=%22samarium+hexaboride%22 Ad astra, Ron Kita, Chiralex Doylestown PA