The ruby is a pink to dark red coloured gem. Its name comes from the word ruber, the Latin word for red. The most valuable ruby has a dark red colour. Prices of a ruby differ on what colour the stone is, and then how clear the stone is. Clear stones are at a premium price, but stones that don't contain rutile (needle-like crystals in a stone) are most likely to have been treated. Carat weight and the way the stones are cut also determine what the price will be.
Rubies are one of the hardest natural stones on the planet – only moissanite and diamond are harder. Diamond hardness is 10.0 on Mohs' scale, and miossanite falls in between rubies and diamonds somewhere. They have a melting point of 2,044°C.!
Rubies are one of the hardest natural stones on the planet – only moissanite and diamond are harder. Diamond hardness is 10.0 on Mohs' scale, and miossanite falls in between rubies and diamonds somewhere. They have a melting point of 2,044°C.!
Rubies can be found all over the world. One of the biggest mining places is in Myanmar (Burma). Other places include the US, Thiland, Cambodia, India, Afghanistan, Pakistan, and Sri Lanka. After the second world war (WWII), new ruby deposits were discovered in Tanzania, Madagascar, Vietnam, Nepal, Tajikistan, and Pakistan. Quite recently, large ruby deposits were found in Greenland under a shrinking ice shelf. In 2002, rubies were found in Waseges River area in Kenya.
Rubies are mostly used to make jewellery, but there are a few exceptions. Since rubies are so hard, they are sometimes used to make emery boards for fingernails. Other times, rubies are used in making solid-state lasers, but they usually use synthetic rubies for this to avoid the natural flaws in natural rubies.
Rubies are mostly used to make jewellery, but there are a few exceptions. Since rubies are so hard, they are sometimes used to make emery boards for fingernails. Other times, rubies are used in making solid-state lasers, but they usually use synthetic rubies for this to avoid the natural flaws in natural rubies.
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