hardness
It is called a streak and its purpose is to find the hardness of the mineral.
DimondDiamond.
hardness
Emery is the mineral in a nail file
Minerals are pure elements. While iron by itself is an element, an iron nail would be made up of iron and various additives, thus making it not a pure mineral.
hardness
hardness
hardness
Mineral hardness is tested on a glass plate or usually a finger nail.
The Moh's scale is used to test the hardness of a mineral. It will be tested by a fingernail scratching it.
Most likely you would be testing to see if the mineral was harder or softer than the nail.
The tests you can do is the streak test, the luster test,the finger nail test(which is scratching it ti see if its hard or not).
no is not a mineral
It is called a streak and its purpose is to find the hardness of the mineral.
This is diamond.
DimondDiamond.
hardness