Chapter 2, Lesson 4 Special Mineral Properties Earth Science Unit 1 Chapter 2, Lesson 4 Special Mineral Properties

Special Mineral Properties Taste Smell Reaction Flexibility Feel

Magnetism Some minerals contain enough iron to make them magnetic Lodestone- magnetite that naturally acts like a magnet

Fluorescence The ability of a mineral to glow and change color under ultraviolet light A fluorescent mineral absorbs ultraviolet light and emits visible light

Phosphorescence When minerals continue to glow after UV light is no longer pointed directly at it

Refraction The bending of a light wave due to a change in the wave’s speed as it passes from one medium to another

Double Refraction The ability of a mineral to produce two images

Radioactivity The ability of some minerals to give off nuclear radiation as a result of a change in the atom’s nucleus