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in industry Czochralski-pulled cobalt spinel can be grown to ultra high purities and used in lasers as a Q switch
It's overall a super cool synthetic very rarely seen in the gem world
This is a lab grown laser alexandrite laser faceted in a custom sharp briolette
but that material really can't hold a candle to alexandrite
Pure Nd:YAG Calibrated Gems, Violet Laser Garnet Loose Stones high dispersion in industry Czochralski-pulled cobalt spinelThese are violet Nd laser garnets (Nd: YAG) cut into various calibrated shapes: rounds, hexagons, and squares. These are violet in normal light and turn pure colorless under fluorescent illumination (like a CFL bulb). It also shifts from violet to magenta to blueberry purple depending on the color temperature of LED lighting, though this is less pronounced. For fancy designs and fantasy cut Nd: YAG stones, click here! Note that the smaller squares can
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