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this 'high glow' material is visible in pitch darkness for over an hour
Beryl is one of the most classic gem families but it turns out it is rather difficult to grow in the lab
so there was an obvious difference when cut
It is an excellent gem
labgrown material sourced from an old Soviet-era collection
Gem Vials: Natural Kornerupine, Garnet, and Tunduru stones, mixed Popout Stones and Pearls Size:Large Pearl (probably mostly imitation) Vial, ~40 ct of pearls this 'high glow' material isThese are vials containing various natural stones as well as mixes of lab natural stones and pearls from scrapped jewelry. Kornerupine: This was a rare Tucson find! Kornerupine is an obscure gem, most commonly found in a dark bottle green, but a deposit in Tanzania produces vanadium and chromium bearing crystals. Vanadium gives a rich brilliant green which is pretty nice, and chromium turns them into a bizarre trichroic blue green purple gem. These