What is the easiest way to tell Quartz and Fluorite apart? Quartz occurs in many
ID: 1886199 • Letter: W
Question
What is the easiest way to tell Quartz and Fluorite apart?
Quartz occurs in many different colors Fluorite does not
Fluorite occurs in many different colors and quartz does not.
Quartz will scratch glass and fluorite will not
D. Fluorite will scratch glass and quartz will not.
Which of the following may explain why chalcopyrite and pyrite have similar formulae but chalcopyrite is softer than pyrit
Chalcopyrite has copper in the formula which may make it softer.
Chalcopyrite has sulfur in the formula which may make it softer .
Chalcopyrite has iron in the formula which may make it softer.
A.Quartz occurs in many different colors Fluorite does not
B.Fluorite occurs in many different colors and quartz does not.
C.Quartz will scratch glass and fluorite will not
D. Fluorite will scratch glass and quartz will not.
Which of the following may explain why chalcopyrite and pyrite have similar formulae but chalcopyrite is softer than pyrit
A.Chalcopyrite has copper in the formula which may make it softer.
B.Chalcopyrite has sulfur in the formula which may make it softer .
C.Chalcopyrite has iron in the formula which may make it softer.
Explanation / Answer
Option (C) is correct
As hardness of glass is more than fluorite so fluorite can not scratch glass.
But hardness of quartz is more than glass so quartz can easily scratch glass.
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