Figure 2.31 Although pure aluminum oxide is colorless, trace amounts of iron and titanium give blue sapphire its characteristic color. (credit: modification of work by Stanislav Doronenko)
Figure 2.31 Although pure aluminum oxide is colorless, trace amounts of iron and titanium give blue sapphire its characteristic color. (credit: modification of work by Stanislav Doronenko)
General Chemistry - Standalone book (MindTap Course List)
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Chapter21: Chemistry Of The Main-group Elements
Section: Chapter Questions
Problem 21.2QP
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The gemstone sapphire (see image) is mostly a compound of aluminum and oxygen that contains aluminum cations, Al3+, and oxygen anions, O2−. What is the formula of this compound?
Transcribed Image Text:Figure 2.31 Although pure aluminum oxide is colorless, trace amounts of iron and titanium give blue
sapphire its characteristic color. (credit: modification of work by Stanislav Doronenko)
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