Smarty Pants Quiz
09
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00
Emeralds and rubies get their colors from which element?
Chromium
Rubidium
Mercury
Radium
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The presence of the chromium impurity makes the colorless corundum crystal red, while the presence of the chromium impurity makes the colorless beryl green.
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09
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00
Emeralds and rubies get their colors from which element?
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