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Jadeite Carving
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 Rare Dushan Jade \ Jadeite Carved Fish Statue  US $79.99
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 Carved Round Bead Jade Jadeite Necklace Chinese Jade Charms #9853 US $58.00
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Here are some more information for Jadeite Carving:
Many types of gemstones belong to groups or species which share a common crystal structure, if not a common chemical composition. Not every gemstone variety belongs to a group. Many important gems, such as peridot, zircon, topaz and spinel, are unique varieties that don't share properties with any other kind of gem. Here are some of the best known gemstone groups:
Beryl
The Beryl species is famous for its most notable member, emerald. But the beryl family also includes aquamarine, morganite, golden beryl and bixbite. All of the beryls are aluminum beryllium silicates, and have a hardness of 7.5 to 8 on the Mohs scale.
Corundum
The corundum species includes two of the most important colored gemstones: ruby and sapphire. Famous for their excellent hardness (9 on the Mohs scale) and rarity, ruby and sapphire share both a common chemical composition (aluminum oxide) and a crystal structure (trigonal). The main difference is color: ruby is red corundum while all other corundum colors are classified as sapphire.
Feldspar
Feldspar makes up nearly 60% of the earth's crust. Feldspar is a group of minerals distinguished by the presence of aluminum and the silica ion in their chemistry. There are two main subgroups of feldspar that produce gem-quality material: the potassium feldspars and the plagioclases, a series that ranges from calcium to sodium feldspars. Among the well-known feldspar gemstones are moonstone, orthoclase, amazonite, andesine, labradorite and sunstone. Amazonite, moonstone and orthoclase are all potassium feldspars. They have a hardness of 6 to 6.5 on the Mohs scale, and a vitreous luster.
Garnet
The garnets are a large group of differently colored minerals with similar crystal structure and related chemical compositions. Garnet has historically been highly regarded for its very good hardness (7-7.5 on the Mohs scale) and great brilliance. The garnet family includes the inexpensive red garnets, almandine and pyrope, as well as some rarer varieties. The premium garnets include the red-orange spessartite, the green tsavorite and demantoid, and the purple-red rhodolite.
Jade
Jade has been known and treasured for more than 7,000 years. But only in 1863 was it discovered that jade is actually not a single mineral. What was traditionally called jade is in fact two separate and distinct minerals: jadeite and nephrite. Nephrite is the more common form of jade. Nephrite ranges in color from mid to dark green or grey-green, but it can also be white, yellowish or reddish. Nephrite is slightly softer than jadeite; nephrite is 6-6.5 on the Mohs scale, while jadeite is 6.5-7. They have quite different chemical compositions as well: nephrite is a calcium magnesium iron silicate while jadeite is a sodium aluminum silicate. The two minerals also have different densities. Jadeite has a density of 3.30-3.38 while nephrite is less dense at 2.90-3.03.
Opal
The opal species has three subgroups: the precious opals, the yellow-red fire opals, and the common opals. The precious opals are distinguished by their unique play of color, a display of rainbow-lie hues which changes with the angle of observation. The fire opals, named for their orange color, usually show no play of color. Most fire opals are milky and turbid, but especially fine qualities are clear and transparent.
Quartz
Quartz is the second most common mineral on earth, making up about 12% of the earth's crust. Only feldspar is more common. There are two different branches of the quartz family. Macrocrystalline quartz includes rock crystal, amethyst, citrine, smoky quartz, rose quartz and tiger's eye. Macrocrystalline quartz, as the name suggests, has large crystals which can be distinguished by the naked eye. This type of quartz is mainly transparent to translucent, with a vitreous luster. The other type of quartz is known as cryptocrystalline quartz. It has microscopically (or submicroscopically) small crystals and is usually translucent to opaque, with a waxy to greasy or dull luster.
Tourmaline
The tourmaline group includes a number of related species and varieties. Some tourmaline are named according to their color, including achroite (colorless), dravite (yellow brown to dark brown), indicolite (blue), rubellite (red), schorl (black), and watermelon (pink/red, green and white). Mineralogy distinguishes a number of tourmaline species according to their chemical composition, including elbaite and liddicoatite.
Zoisite
The name of this group of gems may be obscure, but a type of zoisite is one of the most popular gems of our time, tanzanite. There are in fact three gemstone members of the zoisite species: tanzanite, thulite and anyolite. By chemical composition, zoisite is a calcium aluminum silicate with a hardness of 6.5 to 7 on the Mohs scale. Thulite is an opaque, massive manganese-rich variety of zoisite that is pink in color. It was first discovered in Norway in 1820 and named after the mythical island of Thule. Thulite is usually cut as cabochons or for carving ornamental objects. Anyolite was first discovered near Longido in Tanzania in 1954. Though considered a variety of zoisite, strictly speaking it is a metamorphic rock composed of intergrown green zoisite, black hornblende and ruby.
Please see our website for more information on Gemstone Groups
GemSelect is a leading online dealer in sapphire, spinel, garnet, zircon and many other fine gemstones. You'll find us online at http://www.gemselect.net
The commercial value of jewelry
Many readers ask questions to the edition: China jewelry supplier Why has the investment value? The preservation of how to embody it? In this regard, lamb reporters in Beijing Hutong jewelry trading center.
Experts said that in recent years, China's jewelry industry is to the unexpected high growth rate. Reflected in: 1, China already has a very large-scale production processing capacity, mainly in southern regions. According to incomplete, now has as many as nearly a thousand large-scale factories; Second, the higher processing level, already at the forefront of the world's processing level, in the domestic and even international market, high technology can often see the jewelry, do not few international brands are coming to China for processing partner.
Preserve and increase the space for great jewelry, especially in the Emerald home good, reason, mainly in the following four areas:
l, non-renewable resources
Jade is the result of the surface plate motion. Origin as the Burmese jade, jade mining resources over the past decade more than the total past 300 years of development. Jade deposits found in the direction of northeast to southwest Myanmar Wulu River, about 150 km, 30 km wide, the thickness of the human lot can be mined only about 300 meters before the hand-mining, can rake out the 12 year high jade. Now a hill does not take six months were all flattened, but the quality of the jade is not ready to come out.
2, the lack of high-grade raw materials
High-grade raw material not go to Hong Kong, china gemstone wholesaler the auction will go to collections specialists can be obtained easily. In fact, a lot of really high-end of jade jewelry in the hands of collectors.
3, no substitute
While high-quality jade lack of resources, on the other hand synthetic jadeite jade can only reach the level of rock simply can not do the glistening green jade, crystal clear.
4, sculpture, hand-processing operations
Hand-carved jade and jewelry processing operation is significantly different from the place. After years of growth in each division for a jade carving jade jewelry to be considered before that, taking into account the Agate gemstone types of raw materials, water, color, leather, fog, meat, cotton, lock, and many other multiple causes, can be symptomatic under material. This can be completely different from the large-scale mechanized production jewelry manufacturing. (Reporter Yang Yufeng)
Tip:
Jade collection compared with other collections, having its own security, that regardless of where it was or wear in the body, not like a painting, wooden antiques worry about damp, moth. Jade and the whole auction market is a barometer of the high-end collection of the market. In 1992, Hong Kong, Christie's set emerald necklace worth 3 million, at a time in 1994, a value of 33.02 million. Mainland jade auction also presents a wide range of development trend, such as color, demeanor, carving and so on. The proportion of the annual auction of the jewelry supplier jade auction more than 50%. Jade has brought a new appreciation for the investment and financial management objectives, and in the consumer boom, the collection of jade carvings, but also need to maintain a rational and calm manner, must not because the collection and collection.
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