MASON, Texas – The state gemstone of Texas is blue topaz, and you can hunt for it just two hours outside San Antonio at Bar M Ranch. Topaz comes in a variety of colors: golden-orange or ...

Letter From Topaz Hunting at the End of the World For decades, Hill Country ranches let “rock hounds” come and hunt for rare Texas blue topaz. Now access is closed—unless you know a secret spot.

LONDON (Reuters) - A flawless blue topaz gemstone, said to be the largest of its kind, is set to go on display at London's Natural History Museum. The Ostro stone weighs around 2 kg (4.4 lb) and ...