E.4 Rocks and minerals Flashcards
1
Q
Minerals meaning
A
The basic building blocks of rocks. Each mineral is unique and made of only one type of substance
2
Q
colour meaning
A
starting point (first thing you notice)
3
Q
Lustre meaning
A
The way the surface reflects light
4
Q
Streak meaning
A
Colour or powder it leaves behind when you rub it on a rough surface
5
Q
Cleavage and feature meanings
A
How it breaks
Cleavage: splits into two clean pieces
Fracture: breaks with an uneven surface
6
Q
Hardness meaning
A
How easily it can be scratched (measured with a Mohs Hardness scale)
