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You try to scratch quartz with your fingernail, but you don't leave a mark on the rock. You just tested quartz's:
luster
When pyrite is rubbed against a porcelain tile it leaves a black mark.
It has fracture.
cleavage
luster
its luster
hardness
hardness
This describes how a mineral reflects light:
luster
When pyrite is rubbed against a porcelain tile it leaves a black mark.
It has fracture.
cleavage
luster
its luster
hardness
hardness
Shiny and dull are two examples of a rock's:
luster
When pyrite is rubbed against a porcelain tile it leaves a black mark.
It has fracture.
cleavage
luster
its luster
hardness
hardness
When you scratch a rock with your fingernail, you are testing its:
luster
When pyrite is rubbed against a porcelain tile it leaves a black mark.
It has fracture.
cleavage
luster
its luster
hardness
hardness
Mica can be broken into pieces that have smooth, flat sides because it has:
luster
When pyrite is rubbed against a porcelain tile it leaves a black mark.
It has fracture.
cleavage
luster
its luster
hardness
hardness
Which describes the streak of pyrite (fool's gold)?
luster
When pyrite is rubbed against a porcelain tile it leaves a black mark.
It has fracture.
cleavage
luster
its luster
hardness
hardness
How well a mineral reflects light is:
luster
When pyrite is rubbed against a porcelain tile it leaves a black mark.
It has fracture.
cleavage
luster
its luster
hardness
hardness
When a mineral breaks and its pieces have rough, pointy edges:
luster
When pyrite is rubbed against a porcelain tile it leaves a black mark.
It has fracture.
cleavage
luster
its luster
hardness
hardness
Check it!