Yes, it is a naturally occurring crystal composed of carbon, considered a mineral, not a compound.
No, diamond is the hardest natural mineral.
No. Diamond is a hard mineral, the hardest natural mineral on earth.
Yes. Diamond is an allotrope of carbon, which is a natural mineral.
Diamond mineral is the hardest natural mineral on earth, which makes it the most durable of any mineral.
Yes, a natural diamond is mineral. Diamonds are formed from carbon.
Diamond is the hardest natural mineral.
Diamond is the hardest natural mineral known.
Because diamond is the hardest natural mineral and can only be scratched by another diamond.
No. It's an allotrope of carbon.
Diamond is the hardest known mineral, which is a physical property of the mineral.
A rock is always mineral material. Diamond is formed from carbon -- a natural, organic material. A diamond is considered both a rock and a mineral, according to these definitions.
Man-made diamonds are not considered natural because, by definition, a mineral must form by natural processes.