Rubies are made from the mineral corundum or aluminum oxide. When rubies are treated to extreme heat and pressure, they are formed under the earth’s surface. Corundum is made of densely packed oxygen and aluminum atoms. … This is how the ruby is formed and gets its deep red hue.
Are rubies naturally occurring?
Natural rubies are found in nature and require no other treatment than to be cut and polished. These are the real stones with high price tags. They vary widely due to their imperfections and impurities. This is due to the fact their process of formation is not controlled or not under moderation conditions.
Where are rubies naturally found?
For hundreds of years, Myanmar was the world’s main source for rubies. But deposits also have been found in Thailand, India, Afghanistan, Brazil, Colombia, Tanzania, Vietnam, Namibia, Scotland and Japan.
How long does it take for a ruby to form naturally?
As the development of rubies takes 20-30 million years, tectonic movements of the earth’s plates separated them into the continental shapes of today, all the while producing their ruby deposits in isolation.
What rock is ruby found in?
Ruby is usually found in metamorphic rocks, such as those in the Harts Range in the Northern Territory. However, a more transparent, gemstone-quality ruby comes from a few areas in eastern Australia where it has been brought up from underlying metamorphic rocks by volcanic action.
Where do the best rubies in the world come from?
The source of the world’s finest rubies is Burma, or present-day Myanmar, and for more than 800 years the Mogok Stone Tract mine has produced the most beautiful examples, thanks to the unique geological conditions.
How much is a 1 carat ruby worth?
Ruby – Single Stone Price List
|Size||V. Fine||Finer Grade|
|under 1 ct.||call||$500-850|
|1 carat size||call||$700-1500|
|2 carat size||call||$1000-2500|
|3 carat size||call||$1500-2500|
What is the rarest gem in the world?
Musgravite. Musgravite was discovered in 1967 and is arguably the rarest gemstone in the world. It was first discovered in Musgrave Ranges, Australia, and later found in Madagascar and Greenland.
What makes a ruby a ruby?
To be considered a ruby, there must be enough chromium to give the gem a distinctly red color. Finally, rubies must have a combination of color and clarity that makes them an attractive gem. Opaque pieces of corundum with just a hint of red color are not rubies – they are common corundum.
What does a natural ruby look like?
Rubies are red gemstones that consist in the corundum family. Most rubies have a strong red color, although the precise color of rubies can range from blood-red to orangy-red, purple-red, brown-red or even a pink-red tone.
Where do red rubies come from?
The best rubies have traditionally come from the Mogok Valley in Myanmar (formerly Burma). Other countries known for ruby mining include Thailand, Cambodia, India, Pakistan, Afghanistan, Tanzania, Madagascar, Vietnam, Nepal, and more recently under the receding ice shelf of Greenland.
What do rubies look like in their raw form?
It is much easier to tell if a ruby is real when it is raw and uncut, for a variety of reasons. Rubies like to grow in a flat, hexagonal shape. If the uncut gem shows this natural growth characteristic, along with parts of its host rock (marble or alkali basalt) still attached, it is very likely it is a real ruby.
How far underground are rubies?
Lookout Mountain is widely known for its many unusual geological features. The most unique of which being Ruby Falls, an underground waterfall located more than 1,120 feet beneath the mountain’s surface.
How do you know if a ruby is real?
Use the ruby to scratch a hard, smooth surface, such as a piece of glass. If there is a streak of red color left behind on the surface, then it is clear that your stone is a fake. A real ruby will never leave color in that way.
How do you tell if a ruby is real with a flashlight?
Real rubies glow with a deep, vivid, almost “stoplight” red. Fake gems are often dull: they are “light, but not bright.” If the gem is more of a dark red, then it may be garnet instead of a ruby. If it is a real ruby, however, know that darker stones are usually worth more than lighter stones.