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glass
2. What term is used to describe the shape of a mineral
that has three directions of cleavage that intersect at
90-degree angles?
3. Describe the cleavage of the minerals listed below.
Include the number of directions and degrees of
cleavage angles (if appropriate).
MINERAL
Muscovite:
Calcite:
Halite:
CLEAVAGE
▲ Fi
7.



Answer :

GinnyAnswer

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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