____ refers to the tendency of a mineral to break along specific planes of weakness, resulting in smooth, flat surfaces. ____ refers to the way light interacts with the surface of a mineral, influencing its appearance and shine. ____ refers to the tendency of a mineral to break along specific planes of weakness, resulting in smooth, flat surfaces. ____ refers to the way a mineral breaks when it does not follow a defined cleavage plane. ____ refers to a mineral's resistance to scratching or abrasion.

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