|Free download Diamond PNG images.
In this category you can download more than 30 Transparent
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Diamond is the hardest natural substance in the world.
Each carbon atom is surrounded by four neighboring
carbon atoms in a tetrahedral coordination that is
the result of a covalent bond and a face centered
arrangement in the cubic unit cell. Diamond is in
the isometric crystal system, which is reflected in
the commonly found octahedral or cubic crystal form.
Color is usually pale yellow
to colorless, but can also be brown, blue, green,
orange, red, and black. Diamonds are differentiated
between various types, Ia, Ib, IIa, and IIb. Diamond
may be up to 3 billion years old, which is much older
than their surface host rock. These igneous host rock
formations are roughly cylindrical in shape and act
as a conduit from the Earth's mantle to the contintental
Although this information is important
to the diamond cutter, it is of no value to the student
merely interested in diamond as a gemstone.