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 ...

WYOMING, Mich. — Gems and minerals are sought for their vibrant colors, rarity and, of course, their sparkle. But for Craig Thomas, chair of the Indian Mounds Rock and Mineral Club, gems are a ...