Carbuncle is another name for a deep red almandine gemstone that has been cut with a smooth, convex face in a method called cabochon. Traditionally, the term referred to any red gemstone, most often a ...
The Bible makes many references to jewels and precious stones. This is not so surprising, since in every civilisation gemstones have been highly prized and sought after. There are many gemstones and ...
The September birthstone is sapphire – a gem that’s been cherished for thousands of years. Although the term sapphire usually refers to the blue variety of corundum (ruby is the red variety), this ...
Reducing blue-light on your Windows PC, Mac, or Chromebook is a good way to protect your circadian rhythm and reduce eye strain. While you can download third-party apps, the latest versions of the ...