Question

In the near future, a lunar mining expedition discovers a new mineral, Unobtanium. This mineral displays remarkable properties, not the least of which is it has a hardness of 11 on Mohs scale. In order to form a gemstone out of this new mineral, what should a gem cutter use to cut and polish the facets?
A. Unobtanium
B. Corundum
C. Diamond
D. Chrysoberyl
E. Anything harder than quartz

Answer 1

Answer:

C. Diamond

Explanation:

• Unobtainium is rare and hard to find the imaginary impossible element and even if it had a hardness of 11 on the moho scale to form a gemstone of it would be unobtanium itself or the diamond which is the hardest element in the earth with a moho of 10.