CHARLES D. WINTERS / SCIENCE PHOTO LIBRARY CHARLES D. WINTERS / SCIENCE PHOTO LIBRARY
Magnesium burning in air. Close-up of a ribbon of magnesium (on sand at bottom) burning in air with a bright white flame. Magnesium is a semi-soft, silvery white metal. When heated in air it burns with an intensely brilliant white flame, leaving a residue of magnesium oxide. The metal is sometimes used in flares and flashbulbs.
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