Answer :
Final answer:
Cleavage in minerals can result in distinctive shapes like cubes or rhombs, dictated by the number of directions and angles of cleavage.
Explanation:
Cleavage in minerals refers to their tendency to break along certain planes. Some minerals, like halite and calcite, exhibit cubic cleavage with three directions of cleavage intersecting at 90-degree angles. For example, halite cleaves at 90° angles producing cubic shapes, while calcite cleaves in three directions forming rhomb shapes with approximately 75° cleavage angles.
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