Igneous rock texture refers to size

Igneous rock texture refers to Crystal size

Crystal

Explanation:

The texture of a rock refers to the size of a crystals, that helps in understanding how a rock formed and how the crystallization of magma has taken place.  The texture of an igneous rock depends upon the following factors, such as-

Cooling rate  of magmaType of magma and its viscosity Crystallization order of different minerals

Some of the types of igneous textures are as follows-

Aphanitic texture- Here the crystals are too small to be seen with naked eye. It often forms when lava cools rapidly after eruption. Example, basalt. Phaneritic texture- Here, the crystals are large enough and easily distinguishable, formed under the earth's surface. Example, granite. Porphyritic texture- Here, larger crystals are embedded in the middle of smaller crystals or matrix. Example, porphyry-granite. Pegmatitic texture- Here, the rock contains large and massive crystal. Example, pegmatite. Glassy texture- When the rocks are comprised of glassy materials, then it is called glassy or vitreous texture. Example, obsidian.