Beryl Stone Properties, Facts and Photos
What is the Mineral Beryl?
Beryl is a natural mineral that comes in many different varieties. As a gemstone in its own right it's relatively unknown.
In its purest form beryl is colourless. With the presence of impurities that occur during the crystals' formation shades of red, green, yellow and blue can be introduced.
Although often described as blue beryl, the colour of aquamarine can vary from blue to greenish blue to almost green. Green beryl with a deep saturated colour and darker tone is known as emerald. Where the shade of green is not intense enough or the shade is too light, it will just be known as green beryl.
Strict guidelines are in place to ensure a green beryl meets all the necessary requirements before being classified as emerald.
Pink beryl is known as morganite although naturally its rarely distinctively pink. Stones with a greenish yellow or golden yellow colour are known as heliodor.
Colourless beryl mainly when cut as a gemstone is known as goshenite.
Red beryl is one of the world's rarest minerals. It was originally called bixbite but the name was later changed due to possible confusion with another mineral with a similar name. Ironically both were discovered by the same mineralogist.
Prior to 1969 the mineral beryl was the primary ore of the rare chemical element beryllium.
Since then this exceptionally lightweight metal has mostly been extracted from the mineral bertrandite. Although it can also be found in a number of other minerals, most are extremely rare.
Gemstones cut from beryl are highly sought after. Many of the world's largest and flawless stones are housed in museum collections around the world.
Beryl is a lustrous and relatively hard mineral that grades 7.5 to 8 on Mohs scale of hardness. It's believed to have been one of the gemstones in the high priest breastplate. This biblical garment was worn by the first Jewish high priest.
Although aquamarine is the traditional birthstone for the month of October, beryl can be used as an alternative because it's basically the same stone. The same applies for emerald which is the birthstone for May.
Beryl is mined primarily in Brazil, Zimbabwe, South Africa, Namibia and the United States.
The Name Beryl
The name beryl originated from old French. The Latin is "beryllus" whilst Greek is "bēryllos".
In Medieval Latin the name "berillus" was used for any valuable stone with pale green colour. It was also used for fine crystal and glasses (for vision).
The lenses in glasses made by Italian monks in the 13th century were produced from beryl.
The German for "glasses" which is "die brille" comes from the world "berille" meaning "beryl".
The green beryl in our first picture is from Colombia. This piece is on display in the Natural History Museum Los Angeles.
The second picture is blue beryl or aquamarine from Afghanistan. Both photographs are courtesy of Stan Celestian.
Images are clickable are redirect to the original non-compressed photos.