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Which of the following is a primary constituent of pearl?

  1. A
    Calcium carbonate
  2. B
    Calcium sulfate
  3. C
    Sodium bicarbonate
  4. D
    Magnesium Peroxide

Solution & Step-by-step Explanation

Pearls are primarily made of calcium carbonate (CaCO
3

) in crystalline form (mostly aragonite or a mixture of aragonite and calcite), which is deposited in concentric layers by mollusks.

Practice this question

Try it yourself before checking the explanation above.

Which of the following is a primary constituent of pearl?
A
Calcium carbonate
B
Calcium sulfate
C
Sodium bicarbonate
D
Magnesium Peroxide

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