While topaz normally ranges from clear to golden yellow to brownish yellow in color, the gem also has a green variety. The green color is caused by chromium or vanadium coloring a clear topaz ...

Position kiwifruit as the next big thing in produce. In the crowded fruit aisle, where aromatic oranges and shiny apples vie ...

Emerald: The Green of Beryllium and Chromium Emeralds, another popular gemstone, derive their lush green color from trace ...

Two years ago, the jewelry designer Vanessa Fernández found herself admiring a curious green stone at a gem show in Tucson, ...