July Birthstone : Ruby
Birthstone Color: Red
Rubies were thought to represent heat and power. Ancient tribes used the gem as bullets for blowguns, and it was said that a pot of water would boil instantly if a Ruby was tossed into it. Ground to powder and placed on the tongue, this crystal was used as a cure for indigestion.
The word Ruby comes from the Latin "ruber," meaning red. It is a variety of the mineral Corundum, and is found as crystals within metamorphic rock. Corundum is the second hardest mineral, after Diamond. It comes in a variety of colors, and is considered a Sapphire in any color except red, which is designated as a Ruby. Rubies range in hue from an orange-y red to a purplish red, but the most prized gems are a true red in color. Large sized Rubies are very rare and valuable.
The history of Ruby mining dates back more than 2,500 years ago. The most beautiful crystals are thought to be from Burma, but quality Rubies are also found in India, Sri Lanka, Australia, Kenya, Tanzania, Afghanistan, Pakistan, and the United States.
It has been said that the Ruby's red glow comes from an internal flame that cannot be extinguished, making a gift of this stone symbolic of everlasting love. With its hardness and durability, it is a perfect engagement gem. And if worn on the left hand, ancient lore has it that the Ruby will bring good fortune to its wearer, too!
This article came from http://www.about-birthstones.com/julybirthstone.html.