Correct Answer:

Solution : The correct answer is Dolomite.

Igneous rocks, also known as primary rocks, are formed from magma and lava from the earth's interior. Texture is used to classify igneous rocks into various types. Texture is determined by the size and distribution of grains, as well as other physical properties of the materials. Mineral grains can be exceedingly big if molten material is slowly cooled at enormous depths. Rapid cooling at the surface produces small, smooth grains. Intermediate cooling conditions might result in intermediate grain sizes in igneous rocks.
Igneous rocks include granite, gabbro, pegmatite, basalt, volcanic breccia, and tuff.