Answer:
Halite:
The above-named is a water-soluble, naturally occurring mineral is usually found in arid and semi-arid topography. It is formed as water with high mineral salt contents evaporates.
As the water evaporates, the minerals crystalize into a rock-like form. One important point to note is that they are found chiefly among sedimentary rocks. They aren't sedimentary in nature but are called evaporites due to their process of formation.
Halite is used for several things which include but are not limited to
- Food seasoning
- Food preservation
- Medicinal purposes
- Household cleaning
- Livestock nutrition etc
Gypsum:
Gypsum is a prehistoric mineral whose formation is still on going today. It is easily identifiable as a rock that is whitish-grey, soft like chalk. It is naturally occurring and can be classified as a sedimentary rock.
Oxygen, sulfur, calcium and water and the minerals required for the formation of Gypsum.
Gypsum also belongs to the class of minierals called evaporites because it is formed as water evaporates. When the water evaporates, oxygen reacts with sulphur to form Sulphate (
).
The Sulphate in turn reacts with calcium and water to form Gypsum.
Gypsum is used in the make and manufacturing of:
- Wall board
- Soil conditioner
- Cement
- Calcium suppliment for human consumption
- Toothpastes (It is used as a binder)
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