Earth's Minerals (Book)
+ How are Minerals Identified?
Other Identifying Characteristics
Minerals have other properties that can be used for identification. For example, a mineral’s shape may indicate its crystal structure. Sometimes crystals are too small to see. Then a mineralogist may use a special instrument to find the crystal structure.
Some minerals have unique properties. These can be used to the minerals. Some of these properties are listed in Table. An example of a mineral that has each property is also listed.
|Property||Description||Example of Mineral|
|Fluorescence||Mineral glows under ultraviolet light||Fluorite|
|Magnetism||Mineral is attracted to a magnet||Magnetite|
|Radioactivity||Mineral gives off radiation that can be measured with Geiger counter||Uraninite|
|Reactivity||Bubbles form when mineral is exposed to a weak acid||Calcite|
|Smell||Some minerals have a distinctive smell||Sulfur (smells like rotten eggs)|