Precious gems and stones—long valued for their rarity, beauty, and fabled powers—have been associated with the months of the year since antiquity. But it wasn’t until 1912, when the American National ...

Peridot is a yellow-green stone that comes from the mineral olivine. Some believe its name derives from the Arabic "faridat," or "gem," according to Geological Institute of America. Others, however, ...

Precious gems and stones—long valued for their rarity, beauty, and fabled powers—have been associated with the months of the year since antiquity. But it wasn’t until 1912, when the American National ...