Question:

Choose a similar word:
Marble : Slate :: Gneiss : ?

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For geology-based analogies, classify rocks into igneous, sedimentary, and metamorphic—this quickly helps in identifying the correct pair.
Updated On: May 6, 2026
  • Quartzite
  • Limestone
  • Coal
  • Sandstone
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The Correct Option is A

Solution and Explanation


Concept: The analogy is based on classification of rocks according to their formation process, particularly focusing on metamorphic transformation under heat and pressure. Step 1:Understand the given relationship.
Marble and Slate are both formed when pre-existing rocks undergo metamorphism due to high temperature and pressure conditions.
Step 2:Apply the same classification logic.
Gneiss is also formed through metamorphic processes, so the correct match should belong to the same category of metamorphic rocks.
Step 3:Evaluate the options.
  • Quartzite → Metamorphic rock formed from sandstone
  • Limestone → Sedimentary rock formed by deposition
  • Coal → Organic sedimentary rock
  • Sandstone → Sedimentary rock formed by compaction of sand

Final Answer: Quartzite
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