What are the impurities present in ruby and s | vedclass

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(A) Ruby and sapphire are gemstones that are primarily composed of aluminum oxide $(Al_2O_3)$. The characteristic red color of ruby is due to the pres

Vedclass · Accepted Answer

$Cr_2O_3$

Vedclass · Answer

(A) Ruby and sapphire are gemstones that are primarily composed of aluminum oxide $(Al_2O_3)$. The characteristic red color of ruby is due to the presence of chromium $(Cr)$ impurities,while the blue color of sapphire is due to the presence of iron $(Fe)$ and titanium $(Ti)$ impurities. Therefore,the impurities present in ruby and sapphire are metal oxides like $Cr_2O_3$ (in ruby) and $Fe_2O_3$ or $TiO_2$ (in sapphire).

What are the impurities present in ruby and sapphire?

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