Diamond - Wikipedia
网页Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond as a form of carbon is a tasteless, odourless, strong, brittle solid, colourless in pure form, a poor conductor of electricity, and insoluble in water.
Natural Diamonds | Diamond Stone – GIA C
网页About Diamond. 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. Another mineral, graphite, also contains only carbon, but its formation process and crystal structure are very different.
Diamond | Definition, Properties, Color, Applications, & Facts
网页2024年8月22日 · diamond, 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. An uncut diamond in rock Diamonds are found in various types of rock deposits and must be …
Diamond (gemstone) - Wikipedia
网页Diamond[a] is a gemstone formed by cutting a raw diamond. Diamonds are one of the best-known and most sought-after gems, and they have been used as decorative items since ancient times. The hardness of diamond and its high dispersion of light —giving the diamond its characteristic "fire"—make it useful for industrial applications and ...
Diamond: A gem mineral with properties for industrial use
网页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. This simple, uniform, tightly-bonded arrangement yields one of the most durable and versatile substances ...
Diamond Description
网页Diamond’s characteristic chemical composition and crystal structure make it a unique member of the mineral kingdom. Diamond is the only gem made of a single element: It is typically about 99.95 percent carbon. The other 0.05 percent can include one or more trace elements, which are atoms that aren’t part of the diamond’s essential chemistry.
Diamond History and Lore
网页Diamond History and Lore. Diamonds have a long history as beautiful objects of desire. In the first century AD, the Roman naturalist Pliny stated: “Diamond is the most valuable, not only of precious stones, but of all things in this world.”. A diamond has to go through a lot before it reaches the jeweler’s display case.
Diamond Shapes & Cut Types: Education & Shape Charts - Tiffany …
网页Oval Diamonds. The oval shape is an elegant combination of the round brilliant cut and the marquise diamond. This brilliant cut features shimmering facets that make the light dance and create the illusion of longer fingers. Bold and sophisticated, the oval diamond is a unique shape for the wearer who wants to express their individuality.
Diamond: The gemstone, the mineral, the super material.
网页Diamond is much more than the world’s most popular gemstone and hardest natural material. Today man-made diamonds are being used in computers, speakers, cutting tools, bearings, laser windows, wear-resistant parts and much more.
Diamond | Properties, Formation, Occurrence, Deposits - Geology …
网页2024年7月1日 · Chemical Properties of Diamond. Diamond is a naturally occurring mineral composed of carbon atoms arranged in a crystalline lattice structure. As a result, it possesses a number of unique chemical properties, including: Hardness: Diamond is the hardest known natural substance, with a rating of 10 on the Mohs hardness scale. This means that it ...