Hosted on MSN28d
A blue miracle in the Eifel: How sapphires formed in volcanoes
Researchers at Heidelberg University are studying the formation of this characteristically blue-colored crystal in volcanic melts Sapphires are ... abundances of the light isotope O-16 and the ...
Modern Luxury SD on MSN4mon
Tiffany & Co. Dazzles Eyes With Its Tiffany Céleste
Tiffany Céleste Collection necklace in platinum with unenhanced light blue sapphires, mother-of-pearl and diamonds "The ...