Tuesday, December 29, 2009

Diamond Tutorial

A Diamond is a form of carbon that crystallizes in the crystal system of highest symmetry known as the cubic system born hundreds of miles underneath the surface of the earth. It possesses a hardness far surpassing that of any other substance known in nature with 100 years in the making of it's formation. Diamonds were formed more than 70 million years ago when diamond-bearing ore was brought to the surface through volcanic eruption. After the magma cooled, it solidified into blue ground, or kimberlite, where the precious rough is still found today. The durability of a gem depends on both its hardness and toughness. Diamond, although highest on the scale of hardness (rated 10 on the Mohs scale), is not as tough as some gems because of its good cleavage. (Cleavage is the tendency of a diamond to split in certain directions where the carbon atoms are furthest apart.) Diamonds have a very high degree of transparency, refractivity and dis persion or 'fire' which gives rise in cut diamonds to a high degree of brilliancy and a display of prismatic colors. A diamond's fiery brilliance makes it cherished above all other gemstones by the majority of people. Diamonds occupy a position of incomparable demand.

No comments:

Post a Comment