Rugged topography marks the area averaging between 4,000 and 5,000 feet and renowned for its gem-quality turquoise found in gold-bearing quartz veins.

Mine Tales: Mineral Park renowned for gem-quality turquoise The turquoise was found in gold-bearing quartz veins of the prominent Mohave County mine.

I finally visited Surrey's magnificent turquoise lagoon and it proved a magical hidden gem for a summer picnic ...

Learn how to buy an engagement ring with confidence—explore budget tips, diamond alternatives, vintage styles, and ethical sourcing in this expert-backed shopping guide.

Diamond stocks experienced a setback in past years but look promising for the future. Check out Benzinga’s review for all you need to know.

Gem-quality anorthoclase from southeast Vietnam has commercial potential, as it is abundant and evenly distributed in the basaltic weathering products. The feldspar group of minerals are rock-forming ...

Pizzo Tremogge in Val Malenco, Italy, is a source of gem-quality serpentine. Samples from this mountain locality were investigated by standard gemological and petrological methods, Raman spectroscopy, ...