Diamond is the one mineral in the world that cannot be scratched by any other mineral. Therefore, we refer to diamond as the ____________ mineral.

A. hardest
B. purest
C. densest
D. lustrous

A,B,C,D pick a answer

Respuesta :

Answer:

hardest

Explanation:

Diamonds are known as the hardest naturally occurring substance known.

Answer:

A. hardest

Explanation: