Special Christmas deal! Get 68% off of a 2-year plan and get an 4 additional months free. Just go to [ Ссылка ] and use our coupon code thoughtemporium at checkout.
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Opal is easily one of the most beautiful gem stones and surprisingly it is also quite easy to grow synthetically. Unlike other gems which are solid crystals, opal is made of silica nanoparticles which have to be stacked together in just the right way to produce their magnificent colors. By growing silica nanoparticles of the right size, synthetic opal can be grown that looks just as amazing as the real thing.
Videos/channels I mentioned:
Smartereveryday - [ Ссылка ]
Nilered - [ Ссылка ]
Applied science - [ Ссылка ]
Papers:
Stober process - [ Ссылка ]
Opal preparation - [ Ссылка ]
Supercritical opal drying - [ Ссылка ]
Opal images and info - www.synthetic-opals.com
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