Smithsonian Magazine on MSN2d
See the Stunning Sapphire Ring Belonging to a Medieval Bishop That Just Sold at Auction
Found by a metal detectorist in England, the item features a sapphire surrounded by two emeralds and two stones that are ...
Wall Street Journal4mon
World's Largest Sapphire Found in Sri Lanka
The world's largest blue sapphire corundum was found in Sri Lanka and weighed in at a hefty 42 kilograms. The company that owned the sapphire cut it into several chunks, including a 17 kilogram ...
National Geographic news7y
Minerals and Gems
sapphires, and emeralds continue to qualify as "precious." (At one time, amethyst was also considered a precious gem, but large reserves were later found in Brazil, reducing its value.) ...
Scientists Develop “Super Sapphire” That Resists Scratches, Glare, Fog, and More
New sapphire nanostructures created at UT Austin repel dust, glare, and fog while staying durable. Inspired by nature, these ...