Field studies of colored gem deposits provide the basis for the scientific understanding of natural gemstone formation and, in turn, the basis for criteria for gem identification ... study gem ...

If you’re in search of a “how-to” book full of vibrant images, this is not the one for you. If you are a gemologist at any level in need of a practical guide to gem testing or a reference guide, then ...

You can use apps like "Rock Identifier: Stone ID" to quickly determine the value of rocks. These apps have a database for you to reference different types of rocks for identification. The ...

On an off-season Arizona getaway, Ephraim Motel owners Scott and Julie Barnes made a random, serendipitous stop in the aptly ...

Well logs are essential tools for drilling engineers to understand the subsurface geology and optimize the drilling operations. One of the key objectives of well log interpretation is to identify ...

CHICO, Calif. - The annual gem, mineral and jewelry show returns this week to the Silver Dollar Fairgrounds in Chico. It’s hosted by the Feather River Lapidary and Mineral Society. Lora Haller joined ...

The Payson Rimstones Rock Club’s 26th annual three-day gem and mineral show is Sept. 20-22 at the Mazatzal Hotel & Casino.

Pink, green and blue tourmaline, aquamarine beryl and deep red garnet, purple amethyst and sparkling lepidolite — they all lie buried in Maine granite. To find them, all you have ...

"A Raisin in the Sun" -- Performing through Sept. 15 with shows at 2 and 7:30 p.m., TheatreSquared in Fayetteville.