Which one of the following is a type of igneous rock ?

Igneous rocks are formed through the solidification of molten material, either as magma beneath the Earth's surface or as lava above it [2]. Granite is a primary example of an intrusive (plutonic) igneous rock that cools slowly underground, allowing for the growth of large crystals [2]. In contrast, the other options belong to different rock categories. Marble is a metamorphic rock formed when limestone is subjected to intense heat and pressure [5]. Shale is a sedimentary rock formed from the accumulation of silt and clay particles [3]. Halite is a chemical sedimentary rock, specifically an evaporite mineral formed by the evaporation of saline water. Therefore, among the choices provided, only granite is classified as an igneous rock [4].

Sources

1. [2] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 13: Types of Rocks & Rock Cycle > 13.1. Igneous Rocks or Primary rocks > p. 169
2. [1] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 13: Types of Rocks & Rock Cycle > Some Examples of Metamorphosis > p. 174
3. [3] Certificate Physical and Human Geography , GC Leong (Oxford University press 3rd ed.) > Chapter 2: The Earth's Crust > METAMORPHIC ROCKS > p. 19
4. [5] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 13: Types of Rocks & Rock Cycle > Thermal Metamorphism > p. 173
5. [4] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 6: Soils > Parent Material > p. 1