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.
Because streak is a more accurate illustration of the mineralâs color, streak is a more reliable property of minerals than color for identification. Hardness is one of the better properties of minerals to use for identifying a mineral. Hardness is a measure of the mineralâs resistance to scratching.
There are many types of physical properties. Commonly used examples include density, color, odor, hardness, and volume. Physical properties are further classified based on whether they are extensive or intensive. Extensive physical properties are those that are dependent on the amount of the substance present. Intensive physical properties are those that do not depend on the amount of the substance present. This means they will be the same whether you have one gram or one thousand kilograms of the substance. Density is a physical property that is determined by dividing the mass of a given amount of a substance by its volume. It is often reported in units of g/mL, which means 'grams per milliliter'. Density is an intensive property because the density of a pure substance will be the same no matter how much of it you have.