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

2. Special Mineral Properties
Taste
Smell
Reaction
Flexibility
Feel

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

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

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

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

7. Double Refraction
The ability of a mineral to produce two images

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