companydirectorylist.com  Global Business Directories and Company Directories
Search Business,Company,Industry :


Country Lists
USA Company Directories
Canada Business Lists
Australia Business Directories
France Company Lists
Italy Company Lists
Spain Company Directories
Switzerland Business Lists
Austria Company Directories
Belgium Business Directories
Hong Kong Company Lists
China Business Lists
Taiwan Company Lists
United Arab Emirates Company Directories


Industry Catalogs
USA Industry Directories














  • Diamond - Wikipedia
    Diamond is a solid form of pure carbon with its atoms arranged in a crystal Solid carbon comes in different forms known as allotropes depending on the type of chemical bond The two most common allotropes of pure carbon are diamond and graphite
  • Diamond | Definition, Properties, Color, Applications, Facts | Britannica
    A diamond is a mineral composed of pure carbon It is the hardest naturally occurring substance known; it is also the most popular gemstone Because of their extreme hardness, diamonds have a number of important industrial applications
  • Diamond: A gem mineral with properties for industrial use
    What is Diamond? Diamond is a rare, naturally occurring mineral composed entirely of carbon Each carbon atom in a diamond is surrounded by four other carbon atoms and connected to each of them by strong covalent bonds - the strongest type of chemical bond
  • Natural Diamonds | Diamond Stone – GIA C
    Diamond forms under high temperature and pressure conditions that exist only about 100 miles beneath the earth’s surface Diamond’s carbon atoms are bonded in essentially the same way in all directions
  • What Is Diamond - Gemstone Facts and Information - Gemporia
    Well, Diamond is a gemstone made of pure, native crystallised carbon, with the oldest Diamonds believed to be almost 3 5 billion years old Many Diamonds began their journey 500 million years ago, and even the youngest are believed to have formed over 100 million years ago
  • What Is A Diamond? | Diamond Source of Virginia
    Diamonds form between 120-200 kilometers or 75-120 miles below the earth’s surface According to geologists the first delivery of diamonds was somewhere around 2 5 billion years ago and the most recent was 45 million years ago
  • DIAMOND Definition Meaning - Merriam-Webster
    Diamond, the hardest substance found in nature, was known to the ancient Greeks They called the gemstone adamas, using the same word they used for any unbreakable or indestructible substance, such as the hardest metal, or for anything unmovable
  • What is a Diamond: 10 Fascinating Facts - petragems. com
    Diamonds are precious crystalline stones made from pure carbon, the hardest naturally occurring substance with the greatest thermal conductivity Diamond is a Greek word that means "unalterable" or "unbreakable "




Business Directories,Company Directories
Business Directories,Company Directories copyright ©2005-2012 
disclaimer