Opalized wood has been extremely fascinating to me ever since I first learned about it. This video shows the small collection ...

It’s a “hydrated phosphate of copper,” but you may just know it as turquoise. The blue-green mineral widely regarded as a ...

Talley’s documentary, The Stones Are Speaking, covers the saga of Collins’s groundbreaking discovery with a little more ...

When choosing and alexandrite engagement ring, most people focus on the color-change effect of the alexandrite stone. While that feature remains central, the shape of the stone is becoming just ...

The Mongol Empire was led by Genghis Khan, a conqueror who united the Mongolian tribes across Asia. Khan established a large, ...