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Mineral And Rock Properties
Test Description: A review of the properties that we can test for minerals and rocks.
Instructions: Answer all questions to get your test result.
1) When you scratch a rock with your fingernail, you are testing its:
A
texture
B
streak
C
hardness
D
luster
2) Which material would you need to perform the streak test?
A
a bottle of acid
B
a magnifying glass
C
a white porcelain tile
D
a shiny copper penny
3) Shiny and dull are two examples of a rock's:
A
luster
B
texture
C
color
D
streak
4) When a mineral breaks and its pieces have rough, pointy edges:
A
It has cleavage.
B
It has fracture and cleavage.
C
None of these answers are correct.
D
It has fracture.
5) How well a mineral reflects light is:
A
its cleavage
B
its reactivity
C
its texture
D
its luster
6) Which describes the texture of gold?
A
Gold can be scratched by a nail.
B
Bubbles do not form when acid is dropped onto a piece of gold.
C
Gold feels smooth when you touch it.
D
Gold is shiny when you shine a light on it.
7) Which describes the streak of pyrite (fool's gold)?
A
Pyrite has a gold color.
B
When pyrite breaks it forms into pieces that have rough, pointy edges.
C
When pyrite is rubbed against a porcelain tile it leaves a black mark.
D
When pyrite is held up to the light, it looks shiny.
8) You try to scratch quartz with your fingernail, but you don't leave a mark on the rock. You just tested quartz's:
A
fracture
B
streak
C
cleavage
D
hardness
9) This describes how a mineral reflects light:
A
cleavage
B
fracture
C
luster
D
texture
10) Mica can be broken into pieces that have smooth, flat sides because it has:
A
cleavage
B
luster
C
fracture
D
streak
*select an answer for all questions
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