Which statements reveal properties that can be used to identify minerals?

a mineral is found in africa.
a mineral is made in a laboratory.
a mineral glows under ultraviolet light.
a mineral has hexagonally shaped crystals.
a mineral is warmed and smells like rotten eggs.

The correct answer is - A mineral has hexagonal shaped crystals.

The minerals can be found all over the planet. Some have better properties than others, thus some are highly valued, while some much less valued.

One of the ways in which a mineral can be identified is to examine the structure of its crystals. In this case, a hexagonal shape of the crystals, can provides us with an information if the material we examine and observe is a mineral or not. The reason why the shape of the crystals is important in the identification of the minerals is that they have their own unique patters, patters in the shape of the crystals that differ them from other materials in nature.