sapphires. Pink-colored corundum may be classified either as ruby or sapphire depending on locale. [clarification needed] Commonly, natural sapphires...

ruby; otherwise, the stone will be called a pink sapphire. Drawing a distinction between rubies and pink sapphires is relatively new, having arisen sometime...

scattering. Sunset in Santa Monica, California. Pink topaz from Ouro Preto, Brazil. Corundum, or pink sapphire, from the Dodoma Region of Tanzania Calcite...

blue sapphire Nickel oxide for yellow sapphire Nickel, chromium and iron for orange sapphire Manganese for pink sapphire Copper for blue-green sapphire Cobalt...

Kitaa Coast. Ruby and pink sapphire are the red and pink varieties of the mineral corundum, an aluminum-oxide mineral Al2O3. The pink/red colour is formed...

24 January 2018. "See Princess Eugenie's engagement photos and her pink sapphire ring! • The Crown Chronicles". The Crown Chronicles. 22 January 2018...

000 metric tonnes per year. Other precious minerals like rubies and pink sapphires have been found and mined from areas around Lake Baringo. In 2004, over...

developed "cultured pearl" and advances in the synthesis of rubies and sapphires. There are now numerous gem laboratories around the world requiring ever...

purple When Cr3+ replaces Al3+ in corundum (aluminium oxide, Al2O3), pink sapphire or ruby is formed, depending on the amount of chromium. "Standard Atomic...

"Chromophore Behaviors (Including the 880 nm Absorption Band) in an Irradiated Pink Sapphire" (PDF), Gems & Gemology, vol. 59, no. 1, Gemological Institute of America...