Question

Illustration of corundum lab ware

Answer 1

Corundum is a rock-forming mineral that is found in igneous, metamorphic, and sedimentary rocks.

It is an aluminum oxide with a chemical composition of Al2O3 and a hexagonal crystal structure.

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Answer 2

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Corundum is a rock-forming mineral that is found in igneous, metamorphic, and sedimentary rocks.

It is an aluminum oxide with a chemical composition of Al2O3 and a hexagonal crystal structure.