A recent addition to the December birthstones is the blue topaz. Most blue topaz is artificially created by irradiation of pale topaz.
Luster: adamantine to vitreous | Hardness: 8 | Density: 3.54
Legends & Lore:
- One famous blue topaz was found in 1904 in the Hill Country of Mason County, Texas, North America’s largest known gem-quality Topaz discovery. This 1,296-gram, pale-blue gem may be seen in the Smithsonian Institution in Washington DC.
- Blue topaz was designated the Texas state gem in 1969.
- Topaz is the gemstone for Texas and Utah.