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Why are rubies red and emeralds green? Their colors come from the same metal in their atomic structure
Even the color of blood comes from the protein hemoglobin ... But how can one element – chromium – create the red color of a ...
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Mystery as harbour water turns blood red
The ruby red water was discovered on Careening Cover, flowing through Milson Park in Kirribilli on Monday. The wine-coloured water was reported to the North Sydney Council, and while there is no ...