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Q: Which of the following is NOT a chemical classification of rocks?
  • A. Foliated Rocks
  • B. Siliceous rocks
  • C. Calcareous rocks
  • D. Argillaceous Rocks
Correct Answer: Option A - Chemical classification of rock– Foliated rocks– These rocks have arrangement of certain mineral grains appearing like parallel strips. Calcareous rock– These having calcium carbonate as their main components. Ex- Marbles, lime stone Argillaceous rock– These have clay and alumina as their main components. Ex- Slate, clay, mudstone, laterite Siliceous rock– These have silica as their main components. Ex- Trap, quartz, granite.
A. Chemical classification of rock– Foliated rocks– These rocks have arrangement of certain mineral grains appearing like parallel strips. Calcareous rock– These having calcium carbonate as their main components. Ex- Marbles, lime stone Argillaceous rock– These have clay and alumina as their main components. Ex- Slate, clay, mudstone, laterite Siliceous rock– These have silica as their main components. Ex- Trap, quartz, granite.

Explanations:

Chemical classification of rock– Foliated rocks– These rocks have arrangement of certain mineral grains appearing like parallel strips. Calcareous rock– These having calcium carbonate as their main components. Ex- Marbles, lime stone Argillaceous rock– These have clay and alumina as their main components. Ex- Slate, clay, mudstone, laterite Siliceous rock– These have silica as their main components. Ex- Trap, quartz, granite.