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Not really. When I was younger, I had a bunch of flashcubes (which were very much obsolete at the time) and I used them up taking actual photos.
I still have a few other flashbulbs left, but I'm keeping those as part of my modest camera collection.
So why is magnesium in quotes? It made me wonder, and apparently zirconium was a more modern alternative medium... but yeah, aren't they by and large magnesium?
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