What colour is ruby

From People born in July can have one of two astrological signs: But what about July's birthstone? Each month has at least one gemstone. Here's what you need to know about July's birthstone, including its symbolism, meaning and more. July birthstone July's birthstone is the ruby. The gemstone's name comes from the Latin word " ruber," which means red. This is fitting since rubies are best known for their red color. The finest of rubies will be deep red with hints of purple, referred to as " Rubies get their strong red coloring from the element chromium. " What color is my birthstone? The birthstone has long been a symbol of power and was called the " Myanmar is one of the oldest sites for ruby mining. For over five centuries, the country's Mogok area has produced highly sought-after rubies, according to the GIA. Vietnam is also home to sources of the precious stone. Other countries that produce rubies include Mozambique, Afghanistan, Tajikistan, Pakistan, Sri Lanka, Kenya, Tanzania and Madagascar. Rubies are often associated with wisdom, wealth and success in love. It was thought by some that rubies could Besides being the birthstone for July, rubies are often given as gifts for the fifteenth and fortieth wedding anniversaries.

'the king of gems'. THE HISTORY OF RUBY Just being in the presence of a quality Ruby has one of the richest histories of all the gemstones; since it was first discovered over 2,500 years ago, it has captivated all who have encountered it. Early cultures believed that Ruby held the power of life, and ancient scriptures mention Ruby in association with attributes like beauty and wisdom. The name Ruby comes from the Latin word ‘ruber’, which means ‘red’. In Sanskrit, Ruby is known as ‘ratnaraj’, meaning ‘the king of gems’, and later also ‘ratnanayaka’, meaning ‘leader of all precious stones’. Historically, the gem has had many other different names around the globe, which highlights how popular and important it has been with many different civilisations. Ruby mining can be traced back to over 2,500 years ago in Sri Lanka, which is still one of the finest sources of Ruby (and Sapphire) in the world. In Burma (now called Myanmar, a known Ruby source since at least 600 AD), warriors carried Ruby as a talisman, as they believed it made them invincible in battle. In Burma and Thailand, another significant source of quality Ruby, one legend tells of the ancient Burmese dragon who laid three magical eggs. From the first egg came forth Pyusawti, King of Burma, from the second emerged the Chinese Emperor, and the third egg provided all of the vivid Rubies in Burma, many of which local gem traders will tell you are yet to be discovered. Burmese miners once believe that the Pink Sapphir...

\( \newcommand\) • Why is a ruby red? The mineral corundum is a crystalline form of alumina: Al 2O 3. A pure crystal of corundum is colorless. However, if just 1% of the Al 3 + ions are replaced with Cr 3 + ions, the mineral becomes deep red in color and is known as ruby (Al 2O 3:Cr 3 +). Why does replacing Al 3 + with Cr 3 +in the corundum structure produce a red color? Ruby is an allochromatic mineral, which means its color arises from trace impurities. The color of an idiochromatic mineral arises from the essential components of the mineral. In some minerals the color arises from defects in the crystal structure. Such defects are called color centers. The mineral beryl is a crystalline beryllium aluminosilicate with the chemical formula Be 3Al 2Si 6O 18. A pure crystal of beryl is colorless. However, if just 1% of the Al 3 + ions are replaced with Cr 3 + ions, the mineral becomes green in color and is known as emerald (Be 3Al 2Si 6O 18:Cr 3 +). Why does replacing Al 3 + with Cr 3 + in corundum produce a red mineral (ruby) while replacing Al 3 + with Cr 3 + in beryl produces a green mineral (emerald)? Recall that the color we observe when we look at an object or a compound is due to light that is transmitted or reflected, not light that is absorbed, and that reflected or transmitted light is complementary in color to the light that is absorbed. Thus a green compound absorbs light in the red portion of the visible spectrum and vice versa, as indicated by the color wheel. ...