Guide on Beryl Gemstones: Identifying Members of the Beryl Gemstone Family
In the realm of precious gems, the beryl family stands out for its diverse and captivating members. From the vibrant green of emeralds to the tranquil blue of aquamarines, each gemstone offers a unique blend of colour, hardness, and trace elements that make them highly valued for their beauty and rarity.
Starting with the most famous, emeralds are known for their rich green colour, caused by traces of chromium and vanadium. Known as the birthstone for May, these gemstones are found in metamorphic rocks, often in association with other minerals like quartz and feldspar. Emeralds are notoriously brittle, leading to the creation of the emerald cut - a rectangular step cut with the corners removed - to make them more wearable and to protect them from damage.
Aquamarine, named from the Latin "aqua marina," meaning sea water, due to its blue colour, ranges from pale blue to deep blue, resembling sea water. In the 19th century, blue-green aquamarines were preferred, but now, stones are usually heat treated to remove the green hue, producing a purer blue color. Aquamarines may contain an inclusion called 'rain', which consists of long, thin gas or liquid-filled tubes that run parallel to one another.
Morganite, a pink to peach gemstone, is another member of the beryl family. Coloured by manganese, it is known for its soft pink color, making it a popular choice for jewelry. The popularity of morganite has increased due to the high prices of pink diamonds.
Heliodor and golden beryl are yellow in color, but the former often has a hint of green while the latter is a saturated yellow to orangey-yellow. Both are very clean gems with few inclusions and are coloured by iron.
Goshenite, in its pure form, does not possess the same fire or level of brilliance as other gemstones. However, it is often used as an imitation diamond due to its transparency and brilliance.
Red beryl, a deep red variety of beryl, is considered one of the rarest and most valuable beryl varieties due to its deep red color, which is caused by manganese. It is extremely rare and found primarily in rhyolitic volcanic rocks.
Pezzottaite, while not a member of the beryl family, is often confused with it. It is a rare pinkish-red to pink gemstone, named after gemmologist Federico Pezzotta. Pezzottaite does not often appear in jewelry due to its rarity and exhausted mining sources.
Colombian emeralds are amongst the most sought after and expensive emeralds. They are often included to varying degrees, containing minerals such as pyrite, mica, and needle-like amphibole.
Historically, beryl has been used for lenses and eyeglasses due to its clarity. Each gemstone in the beryl family offers unique characteristics based on colour, hardness, and trace elements, making them highly valued for their beauty and rarity.
[1] Source: https://www.gia.edu/beryl [2] Source: https://www.britannica.com/science/beryl [4] Source: https://www.gemstones.org.uk/beryl.html
- To delve into the world of gemmology, one can enroll in courses or workshops to obtain a diploma and deepen their understanding of various gemstones, such as diamonds, beryls, and their diverse members.
- In the realm of fashion-and-beauty and lifestyle, the brilliance of gemstones like emeralds, aquamarines, and morganite have found a place in jewelry, adding a touch of luxury and elegance.
- Home-and-garden publications may occasionally feature articles on using goshenite or other clear gemstones as an unique, yet practical alternative to diamonds in decorative pieces.
- Publications on the science of gemmology would discuss the rarity and value of red beryl and pezzottaite, their unique chemical compositions, and the challenges associated with mining and cutting these rare gems.
- As a testament to their historical significance, some public institutions may house collections of emeralds, aquamarines, and other beryl gemstones within their foundations, showcasing them for research, education, and public appreciation.
