ring/cyclo sillicates

Question 1

which of the ring/cyclo sillicates should you be able to identify in the lab?

Answer 1

Tourmaline and Beryl

Question 2

identify the following cyclosilicate:
habit:
- a massive lab specimen 
colour:
- definite yellowish colour
- no streak
hardness:
- 7/8 (scratched by the quartz glass)
cleavage:
- HAS ONE VERY VISIBLE DIRECTION

Answer 2

beryl

Question 3

what are the diagnostic properties of the Beryl specimine?

Answer 3

it has a hardness of 7/8 and the cleavage lines are VERY visible

Question 4

What are the properties of tourmaline that you need to identify?

Answer 4

Colour: 
- black/grey colour 
Streak colour: 
- no streak 
Habit:
-  elongated
Aggregation:
- granular 
Lustre:
- vitreous 
Cleavage:
- lacks visible cleavage

Question 5

How could you tell tourmaline apart from other generic black minerals?

Answer 5

It has no streak colour, and is soft with a hardness 3/4. It also has a weird smell