Australian jade is commonly called Chrysoprase, a green variety of chalcedony, but genuine Australian jade can also refer to Nephrite, a true jade mineral found in places like Cowell, South Australia, and Tamworth, NSW, often known as Australian Nephrite Jade. So, while "Australian Jade" usually means Chrysoprase for its color, true Australian jade is Nephrite, which has different properties.
Australia is the major world producer of jade, with exports of nephrite almost entirely supplied from Cowell, in South Australia. Other significant producers are New Zealand, Canada and Taiwan. Burma is the main source of jadeite. The nephrite deposits at Cowell are the largest in the world.
Nephrite is one of two gem materials, nephrite and jadeite, that are known as jade. They have a somewhat similar colour range and a tough, microcrystalline structure. Both have been used as carving materials throughout history. Of these two minerals, only nephrite is found in Australia.
Chrysoprase, also referred to as Australian Jade, is one of the rarest and most valuable forms of chalcedony, which is a cryptocrystalline variety of quartz. It is coloured green by traces of nickel.
Jade is often referred to by either of two different silicate mineral names: nephrite (a silicate of calcium and magnesium in the amphibole group of minerals), or jadeite (a silicate of sodium and aluminum in the pyroxene group of minerals).
The finest-quality jadeite—almost transparent with a vibrant emerald-green color—is known as “Imperial jade.” The royal court of China once had a standing order for all available material of this kind, and it's one of the world's most expensive gems.
Aventurine and jade are two green colored gemstones that may confuse some people. Aventurine is a variety of quartz which contains small Mica, Hematite or Goethite. Jade is the gemstone name given for two different minerals Nephrite and Jadeite. This is the key difference between Aventurine and Jade.
Opal, also known to Indigenous people as the fire of the desert, is a powerful symbol of Australia's arid interior. Australia is home to the world's highest quality, precious opal.
Distinguishing Chrysoprase from Similar Gemstones
Jade: Jade, especially jadeite, can resemble chrysoprase in color. However, jade has a higher density (specific gravity of 3.30–3.38) compared to chrysoprase. Additionally, jade often feels colder to the touch and may exhibit a fibrous texture under magnification.
Common Crystal Combinations to Avoid
If it's authentic, it should feel heavy upon catching. It feels so because original jade has a high density (nephrite jade is 2.90-3.03 and jadeite jade is 3.30-3.38). Toss and then catch it a couple of times to get the feel of its weight. A fake one made of glass or other materials won't feel this heavy.
Jade affects the body's energy flow, and because of its ability to increase energy, wearing jade may not be appropriate for those with weakened immune systems or those who are ill. It can overstimulate the body's energy, exacerbating existing conditions or creating imbalances.
Imperial Jade, with its translucent emerald green color, stands at the pinnacle, commanding the highest prices.
Musgravite is one of the newest and most rare gemstones in the world. Musgravite is a silicate mineral whose main ingredients are beryllium (Be), magnesium (Mg) and aluminum (Al). It was named 'musgravite' after the area Musgrave in Australia from where the material was first found.
Australian Black (Nephrite) Jade combines beautiful midnight blacks, with a medium to fine-grain, affording a very high, mirror-like polish. This key quality consideration facilitates a uniform appearance and deft finish, displaying a high-luster, even in mundane lighting.
Serpentine is a lovely green translucent, waxy silicate of magnesium. it is often mistaken for various types of jade, and some stones called "jade" are actually types of serpentine. A major difference between the two semi precious stones is that serpentine is softer and less dense than most real jade.
Using a UV flashlight for jade and jewelry appraisal is an effective way to evaluate the authenticity and quality of pieces. UV light reveals fluorescence, cracks, inclusions, and other key characteristics not visible under normal lighting conditions.
Who should not wear rose quartz according to astrology? According to astrology, those who do not have venus in their birth chart are advised not to wear a rose quartz gemstone.
Opal, the esteemed national gemstone of Australia, embodies the essence of the country's mineral and gem treasures. Australia proudly claims over ninety percent of the world's opal reserves.
Australia's rarest natural phenomena
By far the largest Australian nephrite jade deposit is found at Cowell, in South Australia. It was discovered in 1965 by a local farmer who found a 3-4 kg boulder of nephrite near an outcrop of white marble. There were several different owners of the deposit from 1966 through to 1973.
Jadeite and nephrite are the official varieties of jade. Serpentine may look like jade but isn't actually jade. Serpentinite is a rock mostly made up of serpentine minerals. New jade (or bowenite) is technically a type of serpentine.
1. Pregnant women: In certain Asian cultures, it's believed that pregnant women should avoid wearing jade, as it may affect the baby's energy. 2. People in mourning: Some traditions suggest avoiding jade during periods of mourning out of respect for the deceased.