Properties of minerals

?
Streak: A mineral in powdered form
Opacity: Degree of transparancy
1 of 5
Lustre: How it reflects light
Hardness: Moh's scale (Fingernail 2.5, Copper coin 3.5, Steel pin 5.5)
2 of 5
Density: Light, Medium (Quartz : 2.65), Heavy
Habit/form: The most commonly found shape/form of the mineral
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Cleavage: The tendancy of a mineral to break along planes of weakness
Fracture: The characteristic way in which the mineral breaks
4 of 5
Other properties: eg Magnetism, reaction with HCl, Twinning, fluorescence
Twinning: Contact Twin, Interpenetrant Twin, Repeated Twin
5 of 5

Other cards in this set

Card 2

Front

Hardness: Moh's scale (Fingernail 2.5, Copper coin 3.5, Steel pin 5.5)

Back

Lustre: How it reflects light

Card 3

Front

Habit/form: The most commonly found shape/form of the mineral

Back

Preview of the back of card 3

Card 4

Front

Fracture: The characteristic way in which the mineral breaks

Back

Preview of the back of card 4

Card 5

Front

Twinning: Contact Twin, Interpenetrant Twin, Repeated Twin

Back

Preview of the back of card 5

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