Photograph by blickwinkel/Alamy Rocks themselves are made of clusters ... Rubies, valued as precious gems, are the mineral corundum in its red form. Perhaps the country best known for its rubies ...

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.

The third rock was categorized as Epidote, an uncommon mineral that isn't incredibly valuable, as it can fetch around $60 per piece. But its rarity marks it as a precious gemstone. From doing more ...

Victory Precious Metals and Minerals earns a Below Average Process Pillar rating. The process is strengthened by the parent firm's five-year risk-adjusted success ratio of 56%. The measure ...