This fall, venture off the beaten path and witness the stunning display of colors in these hidden gems across America. Pack ...

When it comes to gems, the options are nearly endless, and many might not realize just how vast the world of gemstones can be ...

This is the second part in a three-part series on the origin of color in gem materials. This article discusses colors produced by (1) processes that involve multiple atoms (e.g., blue sapphire, ...

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The phenomenon by which bodycolor varies with a gemstone’s thickness is called the Usambara effect. Liu et al. (1999a) determined that this color variation is caused by the hue angle change ...

Among pieces from around the world is the largest known “Lone Star cut” in Texas Topaz. Visitors will also get a glance at ...

Gemstone meanings are inspired by everything from royal traditions and chakras to ancient cultures and spiritual thoughts. “The myriad of colors of gemstones alone transmit energy via the ...

At the time, Lees was leasing the mine in Alma – about 90 miles southwest of Denver – from its three joint owners. Sweet Home ...

The gemstone is known for its "play-of-color," or ability to shift hues. Rough opals appear white, but once polished, their surface shines a rainbow kaleidoscope. Opals can be found across the ...