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Posted on May 16, 2016 5:07 pm
Sapphires are true beauties to behold. These gorgeous gemstones have captured hearts and minds for centuries.
At Hamra Jewelers, we’re proud of our collection of exquisite sapphire jewelry. Here are a few fascinating facts about this soulful and stunning stone.
Related: Where Do Our Gemstones Come From?
Sapphires are part of the mineral species corundum. Corundum is composed of aluminum and oxygen and is colorless in its natural state. When corundum is formed, it will often take on trace elements that give it color. The famous blue color of most sapphires comes from elements of iron and titanium that have been absorbed into the corundum. The intensity of the blue color depends on how much iron the corundum has: The more iron, the darker the blue color.
While sapphires are mostly thought of as blue gemstones, they can actually manifest in a variety of different colors. Corundum that takes on traces of chromium can produce gorgeous pink sapphires. Sapphires can also appear in many other colors, including pink and yellow.
One of the most remarkable qualities of sapphires is their hardness. It’s one of hardest minerals known (with diamonds being the first)). Sapphires are often used to create optical parts for scientific instruments, as well as high-durability windows. They are used to make wristwatch crystals and movement bearings. They’re also used to create thin electronic wafers, which are used to insulate electronics like integrated circuits.
Another unique attribute of sapphires is asterism. Asterism, also known as “the star effect”, is a phenomenon that can occur in corundum. Asterism appears as a six-ray star pattern across the surface of the stone. It can appear in both sapphires and rubies.. The star effect comes from the reflection of light off of a great many tiny, needle-like inclusions across the stone.
There are also “color-change” sapphires. These strange and lovely stones change color under different lighting! One of the more common types of color-change sapphires are stones that will appear to be blue or have fluorescent lighting in daylight, and can shift to purple hues under incandescent light.
The word sapphire comes from the Greek word sappheiros, which scholars believed originally referred to lapis lazuli. In ancient Greece and Rome, nobles would often wear sapphires, for they believed that the stones possessed protective powers. This association of sapphires possessing supernatural significance would carry on for centuries: Priests during the Middle Ages wore them to symbolize Heaven.
Sapphires are most often found in Asia, though they also can spring up in other parts of the world. The world’s sapphire supply comes from some of the following regions:
United States (Montana)
Related: The History Of The Ruby
Come see our selection of fine sapphire pieces at Hamra Jewelers. Stop by our showroom, or give us a call at 480-946-5110.