Corundum
noun
A hard mineral that is often used as an abrasive or in making rubies and sapphires for jewelery.
Rubies are red due to the presence of chromium in the corundum crystal structure.
Often appears as...
- corundum grinding wheel
- corundum crystal structure
Usage tips
Technical
noun
A hard mineral that is often used as an abrasive or in making rubies and sapphires for jewelery.
Rubies are red due to the presence of chromium in the corundum crystal structure.
Often appears as...
- corundum grinding wheel
- corundum crystal structure
Usage tips
Technical
Definition 1 of 1
Pro Tip 1/3Material Strength
Corundum is extremely hard, second only to diamonds, which suggests high durability in its context.
Due to its hardness, corundum is used in watch faces.
Pro Tip 2/3Gemstone Color
Corundum forms rubies or sapphires depending on trace elements, indicating its versatility in jewelry.
While shopping for jewelry, I learned that both rubies and sapphires are actually colored corundum.
Pro Tip 3/3Industrial Usage
Corundum's abrasive qualities mean it's often mentioned in mechanical or industrial contexts.
They used a corundum-coated disk for cutting the steel.
Pro Tip 1/3Material Strength
Corundum is extremely hard, second only to diamonds, which suggests high durability in its context.
Due to its hardness, corundum is used in watch faces.
Pro Tip 2/3Gemstone Color
Corundum forms rubies or sapphires depending on trace elements, indicating its versatility in jewelry.
While shopping for jewelry, I learned that both rubies and sapphires are actually colored corundum.
Pro Tip 3/3Industrial Usage
Corundum's abrasive qualities mean it's often mentioned in mechanical or industrial contexts.
They used a corundum-coated disk for cutting the steel.
Pro Tip 1/3Material Strength
Corundum is extremely hard, second only to diamonds, which suggests high durability in its context.
Due to its hardness, corundum is used in watch faces.
Pro Tip 2/3Gemstone Color
Corundum forms rubies or sapphires depending on trace elements, indicating its versatility in jewelry.
While shopping for jewelry, I learned that both rubies and sapphires are actually colored corundum.
Pro Tip 3/3Industrial Usage
Corundum's abrasive qualities mean it's often mentioned in mechanical or industrial contexts.
They used a corundum-coated disk for cutting the steel.
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