Product that contain the mineral in corundom
Answers
Answered by
1
Answer:
Corundum, naturally occurring aluminum oxide mineral (Al2O3) that is, after diamond, the hardest known natural substance. Its finer varieties are the gemstones sapphire and ruby (qq. v.), and its mixtures with iron oxides and other minerals are called emery (q.v.)....
Answered by
3
Answer:
Hope it helps you mate
Explanation:
Corundum, naturally occurring aluminum oxide mineral (Al2O3) that is, after diamond, the hardest known natural substance. Its finer varieties are the gemstones sapphire and ruby. And its mixtures with iron oxides and other minerals are called emery.
Similar questions