Sorry, Scotty. I didn't know it was in the Secrets Book. Guess that's why
they call it a secret. But with all due respect, any metal, when "properly
enchanted," will glow in the dark and double the effectiveness of light
producing spells. Like I said, <sophist answer>.
End of Glorantha Digest V2 #146
WWW material at http://hops.wharton.upenn.edu/~loren/rolegame.html