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It has exceptionally good normal optical properties too
there's nowhere on Earth a crystal like this could grow naturally
I don't think fantasy cut lithium niobate has ever been available before--it's an odd combination
As these were grown for jewelry they range between different shades and intensities
1x 6mm dop pair
SDI/'Star Wars' Laser Ruby Loose Faceted Stones, Fancy Cuts Stone:5.19ct Square Cut It has exceptionally good normalThese are lab created laser rubies grown for use in the Strategic Defense Initiative, aka 'Star Wars' program, in the 1980s. Like all rubies they have a high hardness of 9, great brilliance and glow red under UV. This is the most classic gem produced by science: laser ruby. While material of this color would be called 'pink sapphire' in a gemological context, in laser science all corundum doped with chromium is considered ruby (in contrast to pink
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