microgranitoid

Example:The microgranite sample was studied for its compositional and textural characteristics.

Definition:A type of intrusive igneous rock with small grain size, typically 0.0625 to 2 millimeters, characterized by a fine-grained texture.

Example:Due to its fine-grained intrusive nature, the rock sample was examined under a microscope.

Definition:An igneous rock composed of grains smaller than 2 millimeters in diameter, typically seen in microgranitoids.