ninegemstone

  Rubies are among the most valuable gemstones on the planet. These gemstones have a deep and vibrant red color with a shimmering sheen and are formed naturally in the earth, under certain conditions. In this article, we’ll be learning more about the natural rubies online, their different types, how is a ruby formed, and where rubies are found in the world.  History, formation, and origin of ruby gemstones Rubies are created and formed using mineral corundum or aluminum oxide. They are formed beneath the earth's surface when subjected to extreme heat and pressure. A Corundum is typically made up of atoms of oxygen and aluminum that are tightly packed together, which usually yields a colorless substance.  Gemstones change color when the aluminum atoms are replaced by minerals and other materials, which is how rubies are formed and get their deep red color. Chromite is especially responsible for producing a deep red color. Optical rubies exhibit orange and pink shades beca...