What properties are not commonly used to identify minerals?

* Taste: Some minerals, such as halite (rock salt), have a distinctive taste. However, taste is not a reliable property to identify minerals because many minerals are toxic and should not be tasted.

* Smell: Some minerals, such as sulfur, have a distinctive odor. However, smell is not a reliable property to identify minerals because many minerals have no odor or can have a variety of odors.

* Hardness: Hardness is a measure of how resistant a mineral is to scratching. However, hardness is not a reliable property to identify minerals because some minerals can have variable hardness, and some minerals can have similar hardness to other minerals.

* Cleavage: Cleavage is the tendency of a mineral to break along certain planes. However, cleavage is not a reliable property to identify minerals because some minerals can have multiple cleavage directions, and some minerals can have no cleavage at all.