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Consider the following statements with reference to Feldspar mineral: 1. Half of the earth's crust is composed of feldspar 2. It has light cream to salmon pink colour 3. Magnesium is a common element in all types of feldspar Which of the statements given above is/are correct?

Options

  1. A1 only
  2. B1 and 2 only
  3. C2 and 3 only
  4. D1, 2 and 3

Correct answer

B. 1 and 2 only

Step-by-step solution

Feldspar is the most abundant mineral group, making up about half of the Earth's crust. Thus, statement 1 is correct. Feldspar minerals typically exhibit colours ranging from white and light cream to salmon pink. Thus, statement 2 is correct. Feldspars are primarily aluminosilicates of potassium, sodium, and calcium. Magnesium is not a common element in feldspar. Thus, statement 3 is incorrect. Therefore, only statements 1 and 2 are correct. Answer: 1 and 2 only

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