Which of the following is a primary constituent of pearl?
- ACalcium carbonate
- BCalcium sulfate
- CSodium bicarbonate
- DMagnesium 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.
3
) in crystalline form (mostly aragonite or a mixture of aragonite and calcite), which is deposited in concentric layers by mollusks.