Multiple choice

Which one of the following rocks is a metamorphic equivalent of sandstone?

  1. marble

  2. quartzite

  3. Gneiss

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

Quartzite is the metamorphic rock formed from sandstone. Under intense heat and pressure, the quartz grains in sandstone recrystallize to form quartzite, a much harder and more compact rock. Marble is the metamorphic form of limestone, gneiss can form from various rocks depending on composition, and granite is an igneous rock, not metamorphic.

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