These rugged and sleek new watches—in chronograph, automatic, or quartz—are built to tackle the great outdoors in style.

On the outside, the sphere-shaped thunderegg appears to be a roughly noduled rock, typically grayish brown in color ... opal and quartz crystals, according to the United States Department of ...

Deep within a remote private mine, a remarkable discovery recently captured the attention of all who encountered it. Miners, working tirelessly in the depths of the earth, unearthed a rare amethyst ...

When crossing the Colorado, full of sandbars, the boatman would call out "mark twain" (two feet), grabbing the travelers' ...

Located in the south are the major concentrations of the famous colorful petrified wood ... dynamiting logs searching for amethyst and quartz crystals. To prevent further destruction of its ...

Vector jewels Vector bright line art sketch colorful quartz crystals in jewelry box. Pixiecore and fairycore Vector outline of minerals with bright spots of paint. Shine and sparkling. Vintage casket ...

Hi Jon. I recently read your article on the “Fat Man” Chinese Silver Coin. The article reminded me of these two Chinese items ...

Seifert and his colleagues reported that these emeralds had a significantly different color from those found in the Kafubu area. The Musakashi stones ... quartz, pyrite, dark brown to black tourmaline ...

Get your camera ready. There are 98 days between Memorial Day and Labor Day. We’ve come up with 98 ways to celebrate the ...

Lydia Dyer, gem courtesy John Dyer & Co. Citrine—the transparent, pale yellow to brownish orange variety of quartz—is rare in nature ... richness of the resulting citrine’s yellow color. Citrine ...

Crystals -- from sugar and table salt to snowflakes and diamonds -- don't always grow in a straightforward way. Researchers have now captured this journey from amorphous blob to orderly structures.