Turtle's Hoard LuAG T-shirt laser gem As an experimental and extremely

As an experimental and extremely difficult-to-grow material it comes at a high premium but I'm extremely glad we've had a chance to be involved--this is the most gorgeous material I've ever worked with

specifically Bi3Ge4O12 aka evlitine) is valued as an optical substrate because of its highly unusual electrooptical properties

While they may have been designed for science they make amazing gems as well

These can of course be faceted as gems and are just extremely cool

I cut this stone back in December

Turtle's Hoard LuAG T-shirt laser gem As an experimental and extremelyThis premium t shirt, brought to you by Turtle's Hoard, is all black, with a faceted LuAG Lumogarnet on the front. It's a great way to show that you're a fan of Gems of Science and of Turtle's Hoard. .: Made with medium fabric (5. 3 oz yd (180 g m)) consisting of 100% cotton for year round comfort that is sustainable and highly durable. .: The classic fit of this shirt ensures a comfy, relaxed wear while the crew neckline adds that neat, timeless look