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A polymorphic compound, mostly found in the form of quartz.
Crystalline allotrope of elemental carbon, the hardest known natural substance.
This animation demonstrates the structure of small, mass-produced circuit boards.
This animation demonstrates the structure and most important peripherals of desktop computers.
A variety of peripherals can be used with laptop computers.
A crystalline allotrope of carbon which was discovered at the end of the 1980s.
One of the crystalline allotropes of elemental carbon.
The Internet allows us to send data quickly to large distances.