Diamond Avenue



What is a Diamond?

Name Backgound:
The name "Diamond" comes from the ancient Greek "adamas" defined as "invincible."
Diamond Hardness:
The world's hardest known natural substance (occuring in nature)
Third hardest known natural or man-made substance after 1) aggregated diamond nanorods and 2) ultrahard fullerite
Base Element:
Carbon - the diamond is one of two allotropes of carbon. The other is graphite
Physical Qualities:
Hardness, High dispersion of light
Physical Characteristics:
Makes a superior abrasive, holds a polish extremely well, retains its luster
Diamond quality is determined by the Four C's: Carat (weight), Clarity, Color, and Cut (Shape)
History:
Used as gemstones for at least two thousand five hunderd years
Since the nineteenth century, diamonds have become increasingly popular due to:
1) greater supply, 2) improved polishing and cutting procedures,
3) better advertising, and 4) more people with disposable income - see Diamond History
Sources:
Volcanic pipes (or conduits) from deep within the Earth where
temperatures and pressures are high permitting the formation of crystals
Deposit Locations:
Central and southern Africa - roughly half of all annual mining
Canada, Australia, India, Russia and Brazil



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