Most people know some very basic information about minerals, crystals, and gemstones, but likely wouldn’t be sure about what the real scientific differences are between the three categories.

Many minerals form beautiful crystals, but the most prized of all are gemstones. Uncut gems often look fairly ordinary–like rocks. It's only when they are cut and polished that they obtain the ...

Let’s explore the deadliest crystals, minerals, and gemstones that, despite their dazzling appearances, pack a dangerous punch. 1. Arsenopyrite At first glance, arsenopyrite looks like a shiny ...

Naomi Sarna has been working on a grapefruit-size sculpture of a Siamese fighting fish, coaxing it from a piece of blue ...

As the Gem and Mineral show returns to Tucson, some vendors saw fewer crowds and sales compared to past years as consumers ...

Tucked beneath the back of the stairs at the Ramada by Wyndham Tucson, 777 W. Cushing Street, Eritrean-born Huruy Zerzghi ...

Russell and Missy Carhart, co-founders of Hart Events and managers of Eons Expos, hope to attract younger audiences and raise money during their 130,000-square-foot Tucson Gem Show on 22nd Street.