As author Vincent Pardieu notes, however, blue sapphire with a natural beryllium content has been reported on several occasions, in material from a variety of sources. The best way to obtain a ...
As author Vincent Pardieu notes, however, blue sapphire with a natural beryllium content has been reported on several occasions, in material from a variety of sources. The best way to obtain a ...
A Dubai-based company has opted to purchase the world’s largest single natural corundum as a single crystal (Blue Sapphire) in the world, which was found in Sri Lanka last December, for USD 100 ...
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