______ is an allotrope of carbon that is known for its strength and is commonly used in industrial applications such as cutting tools and drill bits.
graphite
diamond
fullerene
carbon nanotube
Diamond is a form of pure carbon that is well-known for its extreme hardness and sparkling appearance.
Diamonds are typically formed under high pressure and high temperature conditions deep within the Earth's mantle, and are then brought to the surface through volcanic activity. They have a wide range of industrial and commercial applications, including use as abrasives, cutting tools, and jewelry.
Additionally, they have been studied for their unique optical and electronic properties, leading to potential uses in fields such as quantum computing and biomedical imaging.