What is the name of this rock? (Hint: It can scratch glass.)
A)Slate
B)Quartzite
C)Marble
D)Gneiss

Name: What is the name of this rock? (Hint: It can scratch glass.) A)Slate B)Quartzite C)Marble D)Gneiss
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Question

What is the name of this rock? (Hint: It can scratch glass.)
A)Slate 
B)Quartzite 
C)Marble 
D)Gneiss

Quizplus · Accepted Answer

Quartzite is a hard and durable rock that can scratch glass due to its high quartz content. Slate, marble, and gneiss may not have enough quartz to scratch glass.

What Is the Name of This Rock? (Hint: It Can