0
Rubies are made of corundum (aluminum oxide, Al2O3) with trace impurities that give them their color.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoRubies are made of the mineral corundum an contain impurities that give them a reddish color. Corundum is the mineral name for aluminum oxide.
Add your answer:
Earn +20 pts
Are cut or uncut rubies worth more?
Uncut rubies are worth more than cut rubies
Where are rubies mined?
There are ruby mines in Africa.
What are rubies used for?
Since rubies are red, they are used in lasers.
Why are rubies semi-precious?
Rubies are traditionally classified as "precious", not "semi-precious".
When was the sapphire discovered?
I don't think rubies were made, they're a mineral in the ground.
Where rubies made in caves?
"Where" or "were"? Either way... they aren't or weren't made in caves.
Are rubies made out of sedimentary rocks?
God I hope so
What percentage of rubies is corundum?
100% of rubies are corundum. "Ruby" is a name made up by the gem trade for the mineral known as corundum, when it is red.
What is the collective noun for rubies?
It is a strand of rubies
Do cats have rubies?
Rubies are a gemstone. Unless the cat is wearing a collar that is decorated with rubies, no cats do not have rubies.
Can a ruby be made in a lab?
Yes. Rubies can be produced in controlled settings.
What is a ruby coated lens?
its made of rubies and it covers lens DUHHHH
When was a remontoir pocket watch 10 rubies made cylindre?
1895
Where are rubies made?
Natural rubies are a gem stone and not man made. These can be found in Southeast Asia and the middle east. Yet, there are lab created rubies that are seen in a great deal of today's modern jewelry. To find a natural ruby is rare and they cost a great deal. The lab ruby is made by many companies all over the world.
What is a lab made ruby?
Bot Ruby ans Sapphire are made of the crystalline form Aluminum Oxide (with impurities that impart the characteristic colors). It is possible to mimic nature and grow these crystals artificially in a factory. These rubies are called "lab made rubies".
Rubbies and sapphires are alike but not in color?
Rubies and sapphires are both made from corundum but both have different minerals that colour them. Rubies are always red and sapphires are any colour but red
What are crowns made of?
Crowns were made of precious metals(such as gold)set with beautiful jewels(such as emeralds,rubies and sapphires.
