What minerals contain diamond?
It is formed deep in the mantle and is only brought to the surface via kimberlite pipes, lamprophyres, eclogites and other rocks that originate deep within the mantle. It is also found in alluvial deposits, along with quartz, corundum, zircon and other minerals, derived from such rocks, and in certain meteorites.
Where is diamond found in India?
In India, Andhra Pradesh, Chhattisgarh, and Madhya Pradesh are the three states that produce diamonds. Among them, Madhya Pradesh accounts for about 90% of the total diamond resource of the country.
In which rock diamond is found?
kimberlite
What are the hardest substances known to man?
Diamond is the hardest known material to date, with a Vickers hardness in the range of 70–150 GPa. Diamond demonstrates both high thermal conductivity and electrically insulating properties, and much attention has been put into finding practical applications of this material.
Is Diamond a fullerene?
C60 fullerene consists of spheres made of atoms arranged in hexagons. Diamond has covalent bonding, whilst graphite and C60 fullerene have covalent bonding and London dispersion forces. In the diamond structure, each carbon atom is attached to four other carbon atoms in a tetrahedral arrangement of carbon atoms.
Which is a common use for diamonds?
One of the most common uses of a diamond, besides being made into jewellery, is the use of it in the industrial industry. Due to a diamond’s remarkable strength, they have become extremely effective as cutting, polishing and drilling tools.
Which is more stable diamond or fullerene?
Crystalline allotropic forms of carbon are diamond, graphite, fullerenes and carbon nanotubes whereas amorphous allotropic forms of carbon are coal, charcoal and coke. …
Which is the most stable Carbanion?
Note: Remember primary carbanion and methyl carbanion are the most stable carbanions.
Which is the most stable carbocation?
The tricyclopropropylcyclopropenium cation is the most stable carbocation.
Which carbon is most stable?
All carbon allotropes are solids under normal conditions, with graphite being the most thermodynamically stable form at standard temperature and pressure.