The Texas State Gemstone: Blue Topaz

Topaz is the Texas state gemstone as well as the birthstone for the month of November. It occurs naturally in many colors including blue, orange, brown, green, pink, beige and red. Colorless topaz, a common variation, can be treated by irradiation to produce a wide range of shades of blue. Thus treated, blue topaz is one of the most popular and widely used of all gemstones.

Blue topaz was adopted as the state gemstone as the result of legislation approved March 26, 1969. The same legislation also named petrified palmwood as the state stone.


About Lyman

Lyman Hardeman has held a deep interest in Texas history. He spent his youth in College Station, Texas and received a degree in Electrical Engineering at Texas A&M in 1966. In 1995, Lyman created Lone Star Junction, a popular Texas history website that later merged with TexasProud.com. Lyman is a life member of the Texas State Historical Association and the author of Texas A&M The First 25 Years.