July 12, 2021

Rubies are well known for their vivid red color. Let’s learn about the July birthstone. Here are some fun facts about rubies. What is a ruby? Why are rubies red? Ruby gemstones are a variety of the mineral corundum. More specifically, they are the red variety, which is colored by chromium. Other colors of corundum are classified as sapphire. The word “ruby” comes from the Latin word “ruber” for the red hue. All rubies are red, yet they can have orange, pink or purple tints. How are rubies made? Like many gemstones, rubies are made under extreme heat and pressure