CTH:YAG Faceted Loose Stones, Cut Green Lab Garnets

CTH:YAG Faceted Loose Stones, Cut Green Lab GarnetsThese are lab created green laser garnets, aka CTH YAG. Each cut stone can be purchased individually. This is a classic laser gem, CTH YAG. Like normal Cr YAG (aka Christmas Garnet) it has a super rich green base color, but the addition of thulium takes the energy from the chromium atoms, splits it into two pieces, and sends it to the holmium atoms for the final infrared emission. Since the chromium's energy has been taken, it no longer glows red, and

but will still melt fine)

I don't know what causes this color but it is very unusual

Copper laps tend to perform best when scored

blue and purple depending on the lighting that shift and swirl as the stone is turned

so it's an amazing gem in its own right instead of just trying to imitate diamonds

It also has excellent brilliance

It is used to help detect invisible radiation by absorbing it and converting it to easily-detected visible light--gamma rays and x-rays will activate its glow in addition to UV and even normal blue light

This listing is for those who want to add an 18 inch black solid sterling silver (not plate or filled) wheat chain to their order

either during initial production or refurbishment efforts (don't worry

We have both near-colorless rutile (ranging from very faint yellow to light blue) and 'honey' rutile with a golden color--some of the honey rutile also has fine silky inclusions giving them a turbid or sleepy look

and they glow blue under shortwave 222nm UV to varying amounts because of titanium contamination

The color is also just a bit yellower than the normal luag