Different Formats for Different Numeric Values (Format Function) A user-defined format expression for numbers can have from one to four sections separated by semicolons. If the format argument contains one of the named numeric formats, only one section is allowed.
Hardness is a mineral's ability to resist being scratched. Minerals that are not easily scratched are hard. You test the hardness of a mineral by scratching its surface with a mineral of a known hardness. Mineralogists use Mohs Scale, shown in Table 3.2, as a reference for mineral hardness.
Substances also have chemical properties that are properties that decide how they react with other substances and what happens to them when subject to oxidation or heat. There are many differences between these chemical and physical properties of substances that will be highlighted in this article. In general, physical properties are those that can be observed and measured, such as the color, shape, hardness and the density of the substance.