The Middle Eastern origins of certain precious jewels have been traced in an innovative move by researchers.
They used a technique with the potential to prise open the backstory of valuable stones, including those set in royal crown jewels.
Gemstones from ancient mines were analysed using modern spectroscopy to provide unprecedented insight into historical trade routes.
Researchers were able to decipher a gem's past and the journeys it has taken, unlocking previously hidden histories.
“Gemstones such as emerald and peridot have been mined since antiquity,” study author Adel Surour said. “For example, royal crowns in Europe are decorated with peculiar gemstones that originate from either Africa or Asia.”
The new approach enables a precise differentiation between natural and synthetic gems and offers a deeper understanding of their respective characteristics.
Some of the gemstones have provided a window into historical trade routes thanks to their particular elemental composition and atomic make-up, which act as a type of identifying fingerprint.
A study, published in AIP Advances, involved rapid analysis of gemstones found in the Arabian-Nubian Shield, which were compared with counterparts from around the world.
The shield is a vast treasure trove of mineral deposits in present-day Egypt and Saudi Arabia dating back to Earth’s earliest geological age.
“We showed the main spectroscopic characteristics of gemstones from these Middle East localities to distinguish them from their counterparts in other world localities,” Mr Surour said.
Peridot, a semi-precious olive green crystal used in jewellery. All photos: Getty Images
Peridot, pictured here in its rough form, has been mined since antiquity.
Beryl crystals come in a variety of colours - when they're green, they are better known as emeralds.
Amethyst gets its signature violet hue from iron impurities.
Modern spectroscopy techniques allow researchers to determine the origin of gems like Amazonite, pictured here.
The deep green colour of dioptase crystals comes from its copper content.
The team focused on various silicate gems such as emeralds from Cleopatra’s mines in ancient Egypt, plus other stones from historical sites mostly dating back to Roman times.
The study was able to conclude that specific gemstones including amethyst, peridot, amazonite and emerald are originally from Egypt and Saudi Arabia.
For each, analysis allowed for the identification of their unique fingerprint, which helped in the determination of their origin and differences.
The study concludes that, despite their unique lines, these gemstones share elements due to their collection from various environments.
Locations of the investigated gem minerals from Egypt and Saudi Arabia. 1. Peridot, Zabargad (St. John’s), off the Egyptian Red Sea coast. 2. Peridot from Harrat Kishb (volcanic field), Saudi Arabia. 3. Emerald and amazonite, Wadi Sikait, Wadi El Gemal area, Egypt. 4. Low-grade emerald (beryl), Wadi Ghazala, Sinai Peninsula, Egypt. 5, Amethyst, Aswan area, Eastern Desert, Egypt. Photo: Khedr et al
The researchers used three types of spectroscopy to identify elements that influence colour, differentiating stones found in and outside the region, and distinguishing between natural and synthetic gems.
The iron content, for instance, correlates to the purple in amethysts, while elements such as copper, chromium and vanadium play significant roles in colour.
A unique water peak is present in lab-grown synthetic gems, distinguishing them from their natural counterparts, despite their otherwise identical appearance.
Royal crowns in Europe are decorated with peculiar gemstones that originate from either Africa or Asia
Adel Surour, study author
The crystalline structure of amazonite beads also highlighted differences among those from Mexico, Jordan and Egypt.
“We need to have precise methods to distinguish the source of a gemstone and trace ancient trade routes to have accurate information about the original place from which it was mined,” Mr Surour said.
Not only is the study the first to successfully distinguish certain silicate gemstones – peridot, beryl/emerald, amazonite and amethyst – originating from ancient Egyptian mines using molecular and elemental spectroscopic methods, but it also characterises gems from Saudi Arabia.
Beyond geology and archaeology, the study's implications could be crucial to the gem industry itself.
The ability to differentiate natural gems from synthetics and accurately determine their origins could lead to better authenticity checks and regulations, researchers said.
The UAE has a good record on gender pay parity, according to Mercer's Total Remuneration Study.
"In some of the lower levels of jobs women tend to be paid more than men, primarily because men are employed in blue collar jobs and women tend to be employed in white collar jobs which pay better," said Ted Raffoul, career products leader, Mena at Mercer. "I am yet to see a company in the UAE – particularly when you are looking at a blue chip multinationals or some of the bigger local companies – that actively discriminates when it comes to gender on pay."
Mr Raffoul said most gender issues are actually due to the cultural class, as the population is dominated by Asian and Arab cultures where men are generally expected to work and earn whereas women are meant to start a family.
"For that reason, we see a different gender gap. There are less women in senior roles because women tend to focus less on this but that’s not due to any companies having a policy penalising women for any reasons – it’s a cultural thing," he said.
As a result, Mr Raffoul said many companies in the UAE are coming up with benefit package programmes to help working mothers and the career development of women in general.
8.15pm: UAE Oaks – Group 3 (TB) $125,000 (D) 1,900m
8.50pm: Zabeel Mile – Group 2 (TB) $163,000 (T) 1,600m
9.25pm: Balanchine – Group 2 (TB) $163,000 (T) 1,800m
10pm: Al Shindagha Sprint – Group 3 (TB) $130,000 (D) 1,200m
Expert input
If you had all the money in the world, what’s the one sneaker you would buy or create?
“There are a few shoes that have ‘grail’ status for me. But the one I have always wanted is the Nike x Patta x Parra Air Max 1 - Cherrywood. To get a pair in my size brand new is would cost me between Dh8,000 and Dh 10,000.” Jack Brett
“If I had all the money, I would approach Nike and ask them to do my own Air Force 1, that’s one of my dreams.” Yaseen Benchouche
“There’s nothing out there yet that I’d pay an insane amount for, but I’d love to create my own shoe with Tinker Hatfield and Jordan.” Joshua Cox
“I think I’d buy a defunct footwear brand; I’d like the challenge of reinterpreting a brand’s history and changing options.” Kris Balerite
“I’d stir up a creative collaboration with designers Martin Margiela of the mixed patchwork sneakers, and Yohji Yamamoto.” Hussain Moloobhoy
“If I had all the money in the world, I’d live somewhere where I’d never have to wear shoes again.” Raj Malhotra
Tearful appearance
Chancellor Rachel Reeves set markets on edge as she appeared visibly distraught in parliament on Wednesday.
Legislative setbacks for the government have blown a new hole in the budgetary calculations at a time when the deficit is stubbornly large and the economy is struggling to grow.
She appeared with Keir Starmer on Thursday and the pair embraced, but he had failed to give her his backing as she cried a day earlier.
A spokesman said her upset demeanour was due to a personal matter.
Benefits of first-time home buyers' scheme
Priority access to new homes from participating developers
Discounts on sales price of off-plan units
Flexible payment plans from developers
Mortgages with better interest rates, faster approval times and reduced fees
DLD registration fee can be paid through banks or credit cards at zero interest rates
WORLD CUP FINAL
England v South Africa
Yokohama International Stadium, Tokyo
Saturday, kick-off 1pm (UAE)
F1 The Movie
Starring: Brad Pitt, Damson Idris, Kerry Condon, Javier Bardem
Director: Joseph Kosinski
Rating: 4/5
THE LOWDOWN
Romeo Akbar Walter
Rating: 2/5 stars
Produced by: Dharma Productions, Azure Entertainment
Directed by: Robby Grewal
Cast: John Abraham, Mouni Roy, Jackie Shroff and Sikandar Kher
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Our family matters legal consultant
Name: Hassan Mohsen Elhais
Position: legal consultant with Al Rowaad Advocates and Legal Consultants.
World Cup warm up matches
May 24 Pakistan v Afghanistan, Bristol; Sri Lanka v South Africa, Cardiff
May 25 England v Australia, Southampton; India v New Zealand, The Oval
May 26 South Africa v West Indies, Bristol; Pakistan v Bangladesh, Cardiff
May 27 Australia v Sri Lanka, Southampton; England v Afghanistan, The Oval
May 28 West Indies v New Zealand, Bristol; Bangladesh v India, Cardiff
if you go
The flightsFly Dubai, Air Arabia, Emirates, Etihad, and Royal Jordanian all offer direct, three-and-a-half-hour flights from the UAE to the Jordanian capital Amman. Alternatively, from June Fly Dubai will offer a new direct service from Dubai to Aqaba in the south of the country. See the airlines’ respective sites for varying prices or search on reliable price-comparison site Skyscanner.
The trip
Jamie Lafferty was a guest of the Jordan Tourist Board. For more information on adventure tourism in Jordan see Visit Jordan. A number of new and established tour companies offer the chance to go caving, rock-climbing, canyoning, and mountaineering in Jordan. Prices vary depending on how many activities you want to do and how many days you plan to stay in the country. Among the leaders are Terhaal, who offer a two-day canyoning trip from Dh845 per person. If you really want to push your limits, contact the Stronger Team. For a more trek-focused trip, KE Adventure offers an eight-day trip from Dh5,300 per person.
UAE currency: the story behind the money in your pockets
The internal combustion engine is facing a watershed moment – major manufacturer Volvo is to stop producing petroleum-powered vehicles by 2021 and countries in Europe, including the UK, have vowed to ban their sale before 2040. The National takes a look at the story of one of the most successful technologies of the last 100 years and how it has impacted life in the UAE.
Words come easy for aspiring writer Afra Al Muhairb. The business side of books, on the other hand, is entirely foreign to the 16-year-old Emirati. So, she followed her father’s advice and enroled in the Abu Dhabi Education Council’s summer entrepreneurship course at Abu Dhabi University hoping to pick up a few new skills.
“Most of us have this dream of opening a business,” said Afra, referring to her peers are “young girls thinking of big ideas.”
In the three-week class, pupils are challenged to come up with a business and develop an operational and marketing plan to support their idea. But, the learning goes far beyond sales and branding, said teacher Sonia Elhaj.
“It’s not only about starting up a business, it’s all the meta skills that goes with it -- building self confidence, communication,” said Ms Elhaj. “It’s a way to coach them and to harness ideas and to allow them to be creative. They are really hungry to do this and be heard. They are so happy to be actually doing something, to be engaged in creating something new, not only sitting and listening and getting new information and new knowledge. Now they are applying that knowledge.”
Afra’s team decided to focus their business idea on a restaurant modelled after the Leaning Tower of Pisa. Each level would have a different international cuisine and all the meat would be halal. The pupils thought of this after discussing a common problem they face when travelling abroad.
“Sometimes we find the struggle of finding halal food, so we just eat fish and cheese, so it’s hard for us to spend 20 days with fish and cheese,” said Afra. “So we made this tower so every person who comes – from Africa, from America – they will find the right food to eat.”
