Multiple choice general knowledge

Which of these methods is a reliable way to distinguish a natural pearl from a cultured one and a fake one?

  1. Rubbing the pearl on one's teeth

  2. All of these

  3. X-ray examination

  4. Microscopic examination
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

All three methods - tooth rub test, X-ray, and microscopic examination - are reliable ways to distinguish pearl types when used together. The tooth test detects surface texture, X-rays reveal internal structure, and microscopy shows growth patterns.

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