Rocks and minerals are closely related, but there are fundamental differences between the two. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Sapphires are among the most precious gems, yet they consist solely of chemically 'contaminated' aluminum oxide, or corundum. It is widely assumed that these crystals with their characteristically ...

Two test methods put the rocks at 4.16 billion years old The volcanic rocks date to primordial Earth's Hadean eon Rocks are surviving fragments of Earth's oldest crust June 26 (Reuters) - Along the ...

Every year, something extraordinary happens in Tucson. Beneath the backdrop of rugged mountains and under an impossibly blue sky, the Tucson Gem and Mineral Show transforms the city into a global hub ...

Katie Lankers, of Aurora, admits she’s a fan of jewelry and precious stones and looks forward to coming to a local show where all of that is on display. “I’ve been coming here the past five years and ...