In the 1940's rutile was grown for gemstone manufacturing but is now only grown for optical applications. Every now and then a crystal will have bubbles or is grown on the wrong optical axis. Gems found here are cut from those defective crystals.
In the 1940's rutile was grown for gemstone manufacturing but is now only grown for optical applications. Every now and then a crystal will have bubbles or is grown on the wrong optical axis. Gems found here are cut from those defective crystals.