What is the hardness of glass?

Answer 1

most likely would be bullet proof glass which can with stand forces such as 50.cal bullets and sometimes even medium size hand grenades

Correction, In Sweden they resently made a new discovery, they are under Swedish patent making a sort of glass that is so sharp and so strong that you can littraly shave steel with it.. if it would be a good glass to use on windows i do not know, but it is the worlds strongest glass... they are mainly making attempts to use it in bearings sense glass use less friction than steel, and does not need to be greaced at all compared to steel and sense its less friction they also don't need maintnance... they plan on expanding the production and venture into different fields of markets... to make this glass they exchange oxygen with carbon dioxide instead... the cost to make this glass is today more expensive than regular glass... but not by very much

Hexxoo

Answer 2

There are many different glasses with different chemical compositions, so it depends on the kind of glass. Glasses with a high percentage of silica are a lot harder than those with a lower percentage of silica content. Soda-Lime glass is harder and more brittle than Borosilicate glass.

Answer 3

6-6.5 on the mohs scale