Ruby is a crystalline compound that contains aluminum, oxygen and chromium. The structure of ruby is best described as having

Question

Quizplus · Accepted Answer

Rubies have a crystalline structure where chromium atoms substitute some of the aluminum atoms in the aluminum oxide (corundum) structure, creating substitutional defects. This substitution is responsible for the red color of rubies. They do not have an amorphous structure, nor are they characterized by interstitial defects, where extra atoms would be inserted into spaces between the atoms of the crystal lattice.

Ruby Is a Crystalline Compound That Contains Aluminum, Oxygen and Chromium