whay are some physical features of rubies?

Answer 1

Pretty, shiny, and red

Answer 2

Ruby is a red gemstone, a variety of the mineral corundum (aluminium oxide). The color is caused mainly by chromium. Its name comes from ruber, Latin for red. Natural rubies are exceptionally rare, but synthetic rubies (sometimes called created ruby) can be manufactured fairly cheaply. Other varieties of gem-quality corundum are called sapphires. It is considered one of the four precious gems together with the sapphire, the emerald and the diamond.

Rubies are mined in Africa, Asia, Australia, and Greenland. They are most often found in Myanmar (Burma), Sri Lanka, Kenya, Madagascar, and Thailand, but they have also been found in the U.S. states of Montana, North Carolina and South Carolina. The Mogok Valley in Myanmar has produced some of the finest rubies but in recent years very few good rubies have been found there. In central Myanmar the area of Mong Hsu also produces rubies. The latest ruby deposit to be found in Myanmar is situated in Nam Ya. In 2002 rubies were found in the Waseges River area of Kenya. Rubies are being mined at Audilamena in northeastern Madagascar. Sometimes spinels are found along with rubies in the same rocks and are mistaken for rubies. However, fine red spinels may approach the average ruby in value.
Rubies come in shades of red, red purple and red orange. A medium toned red or red with slight purple is most desired. Clarity of the stone and inclusions are also taken into account to determine the stone's value. A purple or orange stone is called a fancy sapphire. Burmese rubies have a deep red to slightly purplish red color. Thai rubies are of a brownish color, which is generally less attractive and therefore commands lower prices. Generally, medium to high quality rubies that are transparent are normally faceted. In comparison those which are translucent and opaque are normally cut into cabochons, emphasizing more on weight rather than the quality of the cut.

Answer 3

shiny