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Small traces of iron are responsible for much of the color found in corundum (saphire) gems. Ruby, however, does not contain iron and will not be affected by a magnet. To be technical however, I should point out that corundum is not magnetic. Corundum will not attract other pieces of iron to itself (as far as I know). To simply answer that corundum is not magnetic would have been misleading.
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∙ 10y ago
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Why is corundum magnetic?
Corundum is not magnetic.
What is corundum used in?
The overwhelming use, by far, of corundum is in the manufacture of abrasives--sandpaper, grinding wheels, etc. Gem grade corundum is used in jewelry.
What mineral can corundum scratch?
Corundum can scratch almost any mineral that isn't diamond.
What is the transparency of corundum?
Glassy
What is corundum oxide?
Corundum is the 2nd hardest natural mineral discovered. For more information click on the related link.
Why is corundum magnetic?
Corundum is not magnetic.
What is the plural of corundum?
Corundum.
Is corundum hexagonal or cubic?
Corundum ( (Al_2O_3) ) is hexagonal in crystal structure.
What important uses does corundum have?
Corundum is used for jewlery
Which crystal system does corundum have?
Corundum is in the trigonal crystal system.
What do you call a red corundum?
Red corundum is called ruby.
What are facts about the mineral corundum?
Pure corundum is clear in color.
What is the chemical name for corundum?
Corundum is aluminium oxide, Al2O3.
What is the only mineral that can scratch corundum?
Diamond is the hardest mineral and is the only one that can scratch corundum. but in my opinion corundum will scratch corundum any mineral of the same hardness will scratch the other !
What do they call red corundum?
Red corundum is called ruby.
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.
Does corundum have metallic submetallic or non metallic luster?
Corundum's luster is metallic.
