|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 crust.
Although this information is important
to the diamond cutter, it is of no value to the student
merely interested in diamond as a gemstone.