Which one of the following is not an igneous rock ?
Gabbro
Granite
Dolomite
Basalt
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC NDA-2 – 2017
– Gabbro is a coarse-grained, mafic intrusive igneous rock.
– Granite is a coarse-grained, felsic intrusive igneous rock.
– Basalt is a fine-grained, mafic extrusive igneous rock.
– Dolomite is a sedimentary rock composed primarily of the mineral dolomite (calcium magnesium carbonate). It forms through the post-depositional alteration of calcium carbonate sediments or rocks.