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What are the uses of corundum?

In: Earth Sciences [Edit categories]

Answer:

Corundum can be used for sandpaper,jewelry,grinding wheels,etc.

First answer by ID1178165321. Last edit by ID1178165321. Question popularity: 1 [recommend question].

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What are some important uses for corundum?
jewlery
What are some common uses of corundum?
Corundum has some electrical uses, and non gem quality material, such as emery, is extensively used as an abrasive because of its high hardness.
When to use for and when to use to?
A drawbridge allows welcome guests into a castle to cross the moat(a trench of water that goes around the perimiter of the castle)
When to use has and when to use is?
Using " Has " is referred a past tense. Such as: He has taken the garbage out already. Using " Is " for example is referred a Present tense. Such as: He is taking out the garbage.
When to use no and when to use not?
'Not' is an adverb, and is used to make a verb negative. (not + verb) Example with the verb 'to like': Positive: I (do) like chocolate. Negative: I do not like chocolate. Example with the verb 'to...