Each type of mineral has its own combination of properties that identify it. Some
of the properties are
Many minerals come in a wide variety of colors. Different minerals can be the
same color. It is difficult to use just color to identify a mineral.
Streak is the color of a mineral in powdered form. You can see a mineral’s streak by
rubbing a sample across an unglazed ceramic plate and observing the powder left
behind. Sometimes a mineral’s streak is very different from the color of the
Hardness is the resistance of a mineral to scratching. Geologists use the Mohs'
hardness scale to seriate and compare mineral hardness.