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Consider the following pairs of Original Rock : Metamorphic Rock
(1) Sandstone : Schist
(2) Limestone : Marble
(3) Granite : Gneiss
(4) Shale : Slate
Which of the above are correctly matched:
  • a)
    Only 1,2 and 3
  • b)
    Only 1 and 3
  • c)
    Only 2,3 and 4
  • d)
    Only 1,2 and 4
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Consider the following pairs of Original Rock : Metamorphic Rock(1) Sa...
After metamorphism, Sandstone is converted into Quartzite and not Schist. Limestone is converted into marble; Granite is converted into Gneiss and Shale into Slate after the process of metamorphism.
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Most Upvoted Answer
Consider the following pairs of Original Rock : Metamorphic Rock(1) Sa...
Original Rock : Metamorphic Rock pairs

Sandstone : Schist
- Sandstone is a sedimentary rock composed of sand-sized grains of mineral, rock, or organic material.
- Schist is a metamorphic rock that forms from shale, a sedimentary rock composed of silt-sized particles of clay, minerals, and organic matter.
- The transformation of sandstone into schist involves heat and pressure.

Limestone : Marble
- Limestone is a sedimentary rock composed mainly of calcium carbonate.
- Marble is a metamorphic rock that forms from limestone subjected to high heat and pressure.
- Marble has a crystalline structure and is often used for sculpture and architecture.

Granite : Gneiss
- Granite is an igneous rock made up of mainly quartz, feldspar, and mica.
- Gneiss is a metamorphic rock that forms from granite or other igneous rocks.
- The transformation of granite into gneiss involves heat and pressure.

Shale : Slate
- Shale is a sedimentary rock composed of clay minerals and silt-sized particles of other minerals, such as quartz and calcite.
- Slate is a metamorphic rock that forms from shale subjected to high heat and pressure.
- Slate has a layered structure and is often used for roofing and flooring.

Correctly matched pairs

Option C is the correct answer as it includes only the pairs that are correctly matched:

- Limestone : Marble
- Granite : Gneiss
- Shale : Slate
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Community Answer
Consider the following pairs of Original Rock : Metamorphic Rock(1) Sa...
After metamorphism, Sandstone is converted into Quartzite and not Schist.
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