When a Mineral Fractures Along a Cleavage Plane,what Does This

question 8

Multiple Choice

When a mineral fractures along a cleavage plane,what does this suggest about the crystal structure of the mineral?

• A)The atoms are arranged in a simple orderly arrangement with uniform bonding.
• B)The crystal structure contains planes along which chemical bonding is much weaker than other directions.
• C)The crystal grows only planar faces that become weak zones that form cleavage.
• D)The crystal contains warped planes called twin planes that weaken the crystal structure and allow it fracture along a planar surface,causing cleavage.

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