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Why Doesn't Quartz Have Any Cleavages, Only Fractures

Question 68

Multiple Choice

Why doesn't quartz have any cleavages, only fractures?


A) It is made of pure silicon which is very strong.
B) All oxygens are shared between strongly bonded silicons in a 3- D framework.
C) It has strong helical chains in three perpendicular directions.
D) All of the metallic cations form strong webs between the silicate chains.

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