Minerals How To Identify Flashcards
1
Q
What are four categories of lustre
A
Glassy like quartz, Waxy like jade, metallic like gold, dull like clay minerals
2
Q
What are 4 ways to identity minerals
A
Lustre, colour, streak tests and flame colour
3
Q
What colour is the mineral gold?
A
A yellowish colour in rocks and soil
4
Q
What is a streak test
A
Streak is the colour left behind when you try to scratch an unglazed white tile with the mineral.
The scratch is often a different colour from the mineral
5
Q
What are flame tests
A
Chemical tests that provide another way of identifying a mineral
6
Q
What happens in a flame test?
A
Minerals are first ground into powders or dissolved
They are then put into a hot flame
The mineral glows and gives the flame a characteristic colour that may then be used to identify the mineral.
