Then several dolerite dikes, thought to be late Triassic or Jurassic in age, intruded into the Lilesville Granite.

[8] Overall, the granite is a porphyritic rock that is composed of plagioclase feldspar, quartz, and biotite, and contains large pink microcline chunks throughout the matrix.

The quartz throughout the granite shows up as grey anhedral grains, generally smaller than 5 mm in length.

The country rock surrounding the Lilesville Granite underwent thermal metamorphism when the magma intruded, forming a contact aureole.

The outer part of this hornfels consists of a gray fine-grained matrix of muscovite, plagioclase feldspar, and quartz; chlorite can also be found in areas of lower metamorphic grade.

This part of the exterior aureole is a darker gray matrix composed of quartz, feldspar, and biotite.

[9] The interior aureole consists of hornfelses that are found in the center of the ring-shaped Lilesville pluton.

Orthopyroxene is also present in small amounts near the Pee Dee gabbro, indicating a higher grade of metamorphism near the contact.

The Lilesville Granite can be crushed into gravel or sand and used as a base layer for roads, walkways, parking lots, and more.