Which form of silica has the highest specific gravity ?
Correct answer: A. Quartz
- A. Quartz
- B. Cristobalite
- C. Tridymite
- D. All have the same specific gravity
Explanation
Quartz has the greatest specific gravity, about 2.65, whereas cristobalite and tridymite are lower-density polymorphs of silica. Their different crystal structures account for the difference.
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