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Quartz is one of the most common minerals on earth, second only to feldspar. In fact Quartz makes up about 12 percent of the land surface and about 20 percent of the Earth's crust.
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Notable Gems from the AJS Collection
This month we feature some of the finest Quartz gems from our collection. Click on any gem for details.
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31.25 ct Amethyst from Brazil [SOLD]
An outstanding deep purple Amethyst from Brazil in an elegant pear shape, over 26 mm in length. This is completely clean material with excellent brilliance that will make a stunning pendant. Guaranteed natural and untreated by AJS Gems, Bangkok.
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A very fine Madeira Citrine over 20 carats with a rich, open color. Expertly fashioned in a portuguese cut for maximum brilliance. Completely loupe clean. Guaranteed natural and untreated.
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A rare Gem Silica from the famous Inspiration Mine in Arizona. Excellent color saturation with nice translucency. It's rare to find a Gem Silica of this quality in a round shape. At 10.60 mm in diameter with a high dome this fine gem will set up beautifully in a ring or pendant. Guaranteed natural and untreated. |
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22.00 ct Ametrine from Bolivia [SOLD]
A very fine gem Ametrine from the Anahi Mine in Bolivia. This is beautifully clean and transparent material with excellent color separation, with well-defined regions of saturated amethyst and madeira citrine. At over 20 carats, this is a first rate specimen for the collector, at a very affordable price. Guaranteed natural and untreated. |
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Three beautiful African Chalcedony gems, well matched for color, size and shape. At 18 mm in diameter for each gem, this unusual suite is ready to be set in your jewelry design. Guaranteed natural and untreated. |
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A large Chrysoprase cushion from Australia, over 35 carats! Vivid apple-green color with excellent consistency, this impressive gem displays very good translucency with a distinctive glow. Guaranteed natural and untreated. |
News from AJS and the Gems World
20% Discount on All our Gems for the month of July!
As the world continues to emerge from the persistent Covid-19 pandemic and international airmail service is still disrupted, we are offering a 20% discount on all the gems in our collection.
Take advantage of this terrific offer to buy the gem you've always wanted!
Use this discount code at checkout: JULY-20
Small Scale Tanzanian Miner Becomes Overnight Millionaire
A small scale Tanzanian miner, Saniniu Laizer, became a millionaire overnight by selling two Tanzanite gemstones he had mined — the largest ever found in the country — for $3.4 million, according to a report by the BBC. The stones weigh 9.2 kg and 5.8 kg.
Laizer, reportedly a father of more than 30 children, told the BBC that he planned to use the money to build a shopping mall and school in his community in Simanjiro. He said the windfall would not change his lifestyle, and that he planned to continue looking after his 2,000 cows.
Most Tanzanite mining is carried out by large companies, but some small-scale miners like Mr Laizer acquire government licences to prospect for Tanzanite. Illegal mining is prevalent especially near mines owned by big companies. In 2017, President Magufuli ordered the military to build a 24 km perimeter wall around the Merelani mining site.
Ask the Gem Experts
Each month we answer questions from our customers. We welcome your questions and you can submit a question from our contact page.
Can gemological labs identify origin for any gemstone? Can they tell which region or mine the gem came from? JB, Canada
