Question

Prepare a list minerals based on the mohs Scale of hardness and identify some products that make use of these minerals.

Minerals

1. Diamond
2. Corundum
3. Topaz
4. Quartz
5. Orthoclase
6. Apatite
7. Fluorite
8. Calcite
9. Gypsum
10. Talc

Products that contain the Mineral
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
​

Answer 1

Answer:

1) carbon

2)aluminum oxide mineral

3)silicate mineral of aluminium

4)silicate mineral

5)tectosilicate mineral

6)phosphate minerals

7)Fluorite is an important industrial mineral composed of calcium and fluorine (CaF2). It is used in a wide variety of chemical, metallurgical, and ceramic processes. Specimens with exceptional diaphaneity and color are cut into gems or used to make ornamental objects.

8)carbonate mineral

9)sulfate mineral

10)Talc is a clay mineral, composed of hydrated magnesium silicate with the chemical formula Mg₃Si₄O₁₀(OH)₂. Talc in powdered form, often combined with corn starch, is used as baby powder.

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Answer 2

Mohs scale is an ordinal scale that is used for measuring qualitative analysis of hardness of minerals.

Explanation:

Mohs scale characterizes scratch resistance of minerals.

It tests or analyses the ability of hard materials to scratch over soft materials.

1. Diamond has a hardness of 10 in Mohs scale. It contains pure carbon and it is contained in jewellery items or as bags or luxurious items.
2. Corundum has a hardness of 9 in Mohs scale. Corundum is found in metamorphic rocks.
3. Topaz has a hardness of 8 on Mohs scale. It is contained in jewellery or gemstones.
4. Quartz has a hardness of 7 on Mhos scale. It is used for making cuvettes in laboratories or clocks, watches etc.
5. Orthoclase has a hardness of 6 on Mohs scale. It is used in ceramic tiles, dinnerware, porcelains etc.
6. Apatite has a hardness of 5 on Mohs scale. It is used in phosphate fertilizers.
7. Fluorite has a hardness of 4 on Mohs scale. It is sued in industries for glass etching.
8. Calcite has a hardness of 3 on Mohs scale. It is found in limestones and marbles.
9. Gypsum has a hardness of 2 on Mohs scale. It is used in blackboard chalks, cement, wallboard, POP, toothpastes etc.
10. Talc has hardness of 1 on Mohs scale. It is used in insecticides, paint, powders etc.

Higher the Mohs scale measurement, harder is the material.