Cowboy State Daily3d
Wyoming's Everywhere At The World-Renowned Tucson Gem and Mineral Show
Hundreds of vendors from dozens of countries converged in Tucson, Arizona, for the annual Gem and Mineral Show, where the ...
Hosted on MSN23d
35 Most Valuable Gemstones, From Least to Most Expensive
Although this stone is sometimes called "red beryl ... crystals. Poudretteite comes in shades of violet and pink and was named after the Poudrette family, who owned the quarry where the first ...
The Conversation7d
Why are rubies red and emeralds green? Their colors come from the same metal in their atomic structure
Beryl’s crystal structure is more complicated than corundum’s because of the additional elements in the formula, but each aluminum ion is again surrounded by six oxygen ions. Pure corundum and ...
The Hindu6d
Rubies and emeralds get their colours from a common metal
Beryl’s crystal structure is more complicated than corundum’s because of the additional elements in the formula, but each aluminium ion is again surrounded by six oxygen ions. Pure corundum ...