Multiple choice general knowledge science & technology

What is the crystalline form of silica better known as

  1. Diamond

  2. Ruby

  3. Quartz

  4. Emerald
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Quartz is the crystalline form of silica (silicon dioxide, SiO2) found abundantly in nature. Diamond, ruby, and emerald are different minerals with distinct chemical compositions - diamond is pure carbon, ruby is aluminum oxide with chromium, emerald is beryl.

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