Sunday, November 15, 2026

Question: What is Tennessee’s state mineral?

Answer: Agate. It was originally named the state rock in 1969 via House Joint Resolution 42, and later re-designated as the official state mineral in 2009 by the General Assembly (Public Chapter 30). Agate, a semiprecious gemstone, is a waxy, cryptocrystalline variety of mineral quartz in which the colors are present in bands, clouds, or distinct groups.