Turtle's Hoard LuAG T-shirt ruby color changes under different lights

color changes under different lights and has strong red fluorescence--it basically looks a bit different every time you look at it

with cut stones actually resembling rutile

But it's also one of the most brilliant and fiery gems there is

'Phantom YAG':  An unusual material that occurs from contamination at the edges of HDSM boules of laser YAG

Turtle's Hoard LuAG T-shirt ruby color changes under different lightsThis 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