Glossary Blog » jewelry cleaning

A scale of relative hardness for use in testing minerals. Named for the German mineralogist Friedrich Mohs [1772-1839], who proposed it in 1822 The minerals are numbered but the intervals between them are very different, and diamond is far harder than corundum (sapphires and rubies) as much harder than corundum is harder than talc.

This is Why Peridot, The Birthstone for August is Out of this World August babies, prepare to be dazzled by the birthstone of your dreams: Peridot. a gemstone that's as vibrant and refreshing as a summer breeze. Picture this: a gem with the color of fresh limes, the brilliance of sunshine, and a history that's out of this world. Yeah, that's peridot, and it's...