Synthetic star rubies and sapphires were manufactured by the Linde Air
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PDF) Raman Investigations on Two Historical Objects from Basel
Heinz-Jürgen BERNHARDT, Phd
Synthetic star rubies and sapphires were manufactured by the Linde
Synthetic Star Sapphire Gemstone
PDF) Raman Investigations on Two Historical Objects from Basel
Heinz-Jürgen BERNHARDT, Phd
Synthetic Star Ruby with an Unusual Production History. - Document
Dual-Color Double Stars in Ruby, Sapphire, and Quartz: Cause and
H. HÄNNI, Senior Reserach Associate