Granite is a coarse-grained, igneous stone made up of different colors of minerals, although most common granite varieties are dominated by black minerals.
The Shan-Zhess Keep was built out of granite. (Eighth Fleet RPG)
Rakellus was famed for its ornamental-quality granite, used in making sculptures and countertops. (RIS Bouteina: "Home Sense")
Granite quarried on Monastir was used in the construction of Stoneship-class starships, such as the Enterprise (BC-348). (Star Trek: The Stoneship Files: "Highly Illogical")
Xita was also a planet that quarried granite. (Star Trek: The Stoneship Files: "Express Delivery")