Nephrite
A jade bi with two dragons, Eastern Zhou Dynasty
The term "jade" is currently used to refer to both the jadeite and nephrite varieties. This was not always the case.
Nephrite
A variety of Tremolite, nephrite consists of gristly crystals and is commonly green or creamy white in color.
Nephrite Jade
Although "jade" has been in use for a variety of utilitarian and artistic purposes for over 7000 years, it was only in 1863 that a gemological distinction was made between the two different species commonly given this name.
Nephrite
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Nephrite in pure form is white in color or else green or creamy white. Sometimes even beige, yellow, blue or black is seen.
NEPHRITE
Overview: Nephrite's name comes from the Latin lapis nephriticus, meaning "kidney stone," since it was often worn to remedy diseases of the kidneys.
Nephrite
Nephrite occurs in a very limited color range of pale green to dark green hues. Nephrite is whitish-gray when actinolite asbestos is present in the mineral.
Nephrite jade is not as flashy as its cousin, jadeite; nevertheless this is the true jade of ancient China. Nephrite jade was imported into China over three thousand years ago and was the most prized of all Chinese possession.
Enhancements
Nephrite is rarely selectively dyed to alter color for artistic purposes in carvings.
More information on gemstone enhancements.
Nephrite ...
Nephrite
Nephrite is a variety of the calcium and magnesium rich amphibole mineral, Actinolite. It is one of two different mineral species called Jade. The other mineral species known as Jade is Jadeite, which is a variety of Pyroxene.
NEPHRITE
Nephrite is a semi-precious stone, a variety of jade (sometimes called greenstone). Two different minerals are known as jade, jadeite and nephrite.
Nephrite: A compact variety of tremolite and a form of jade. Often called "greenstone" though it can also be found in shades of grey, brown, and black.
nephrite (n) one of two stones commonly known as jade. The other is jadeite.
non-organic (adj) gemstones which are derived from non-living matter, such as minerals and rocks. Cf. Organic.
Nephrite - A hard type of jade with colours ranging from white to dark green and grey or brown to black
Nugget - A lump or irregularly shaped mass
Omega - Chain with a flattened, solid surface formed by the dense links ...
nephrite jade - An exceptionally tough, translucent to opaque member of the tremolite-actinolite series of the amphibole group, the less rare and valuable of the two kinds of jade minerals.
Nephrite
aka Grave Jade, New Zealand Greenstone, New Zealand Jade, Spinach Jade, Tomb Jade
Nephrite is the more common of the two minerals commonly known as jade. The amount of iron present determines its color.
Nephrite: A hard type of jade with colors ranging from white to dark green and shades of gray or brown to black.
Obsidian: Is a natural glass that is formed from lava that cooled too quickly to crystallize.
Nephrite and jadeite jade ranges in color from a somewhat greasy-appearing, white ("mutton fat jade") to dark and light shades of green, gray, blue-green, lavender, yellow, orange, brown, reddish-brown, and black.
Nephrite
Microscopically fibrous very dense aggregate of dark green (brown, gray, white and yellow) color. Of very complex chemically composition. The trade name used is Jade.
Hardness : 6.5 Refractive Index : 1.62 Density : 2.96 ...
Nephrite is composed of silica and magnesia and its color is determined by the amount of iron present in the mineral. A lesser iron content produces lighter colors such as white, cream, yellow, grey, green, blue, red, brown and lavender.
Nephrite jade (figure B-1) is an aggregate of micron-wide amphibole fibers that are densely packed in a felt-like texture. The composition lies within the actinolite-tremolite series (Ca2(Mg:Fe2+)5Si8O22(OH)2).
Nephrite jade is usually a green color, although it can be white.
The most common color is a dark green and is usually used
for gemstone beads and cabochons. Nephrite is found in
Siberia, Alaska, New Zealand, Taiwan and British Columbia.
Nephrite is one of two minerals considered to be jade, the other being jadeite. jadeite and nephrite. Nephrite is slightly softer that jadeite and is often veined; it is used in carvings and for making beautiful bowls and vases.
nephrite
The original jade treasured by the Chinese culture, nephrite is a calcium magnesium silicate and comes in shades of white and green. The composition of nephrite is fibrous, making it one of the "toughest" materials on earth.
noble metal ...
(Green nephrite).Valued by the Chinese more than any other gemstone. It is also believed traditionally to cure hip and kidney ailments, as well as bringing good luck.
jasper ...
Jadeite and nephrite are both regarded in China as 'zhen yu', 'genuine jade'.
Both jadeite and nephrite are very durable and tough, although jadeite is slightly harder than nephrite due to its microcrystalline structure. Clean with mild dish soap: use a toothbrush to scrub behind the stone where dust can collect.
A single lens of nephrite jade weighing 577 tonnes was found in the Yukon territory of Canada by Max Rosequist in July 1992. It is owed by Yukon Jade Ltd.
Largest Amber ...
Greenstone: See Nephrite.
Grooved: The channel routed in a line.
Grossular: Resembling a gooseberry, as with a grossular garnet, also called Grossularite.
See also Tremolite, Nephrite
calcium magnesium (iron) silicate: Ca2(Mg,Fe)5Si8O22(OH)2
Crystallography: Monoclinic; bladed crystals, usually elongated; fibrous, columnar aggregates, massive, granular, often twinned ...
5-7 Treatment: None - Color: Soft to medium mint green to Dark green (Jadeite - Nephrite) For centuries, jade was thought to be a single gemstone, but in 1863 two types were recognized: jadeite and nephrite.
Two minerals, jadeite and nephrite are acknowledged as jade.
Jade has been used for over 7,000 years and has an extensive amount of historical, religious, economical, cultural, and mythical significance.
Jade is an umbrella term for two stones: jadeite and nephrite. Jadeite displays colors which include green, white, pink, red, black, brown, and violet.
Two different minerals are known as jade: jadeite and nephrite. Jadeite is the harder of the two; it is usually used in jewelry production. Nephrite is slightly softer and is often veined; it is used in carvings, for making beautiful bowls and vases.
Among these two varieties, Nephrite is the commonest form of jade; it is also the softer version of the two. It has a complicated chemical structure consisting of magnesium or iron silicate crystals, formed into an interlocking fibrous mass.
One, called Nephrite, has been found throughout the world, but was especially prized by the ancient Chinese who called it Yu, meaning "precious stone of great beauty."
The other Jade, a relative newcomer when compared to Nephrite, is called Jadeite.
Jadeite and nephrite (the jades) are much softer and relatively easy to scratch but are perhaps the toughest gem materials.
Color: white to green, orange, brown, lilac (jadeite); green to creamy-white (nephrite)
Chemical Composition: sodium aluminum silicate (jadeite), calcium magnesium aluminum silicate, with some iron (nephrite) ...
Jade, of the jadeite variety, which is rarer than the nephrite jade, and more highly regarded by the Chinese, is an exceedingly tough material. One can beat a chunk of the rough material with a hammer without making much impression upon it.
The ancient jade carved in China was what we today call nephrite jade: an amphibolite mineral. (Interestingly enough, the word nephrite comes from the Greek word for kidney, nephros, a bit more scholarly version of the same thing.) ...
While they may differ in colour, nephrite and jadeite have similar characteristics. Both are tough and also often have veins or streaks, which are not necessarily considered defects and often enhance the beauty and value of the stone.
Jade: Two distinct minerals, both called Jade: jadeite (most valuable) and nephrite. Jadeite is found in a wide range of colors--green, white/gray, mottled green/white, pink, brown, mauve, yellow, orange and lilac.
Jade is a semiprecious gemstone which is usually green but sometimes whitish and consists of jadeite or nephrite. Jadeite is variable in colour and rarer so more valuable.
Jade has been named for two different gem rocks - Jadeite and Nephrite. Jadeite is rare making it more precious than Nephrite type. There are several different colors of Jade.
The term jade actually refers to two distinct types of stone that closely resemble one another - the more common nephrite and the more expensive jadeite.
Jade is a semiprecious stone, which is often used to describe jadeite and nephrite both as these two are similar in appearance and use. It is available in varieties of shades like green, light purple, yellow, pink, creamy white etc.
Made up of two mineral varieties, jadeite and nephrite, jade has been treasured by the Chinese and Indian population for thousands of years. Many people associate Jade with a green hue but Jade can be green, lavender, red, black and yellow.
The other Jade, a relative newcomer when compared to Nephrite, is called Jadeite.
True jade comes as either jadeite or nephrite. Linked to ancestor spirits and the gods. Prosperity, longevity, fertility, serenity, wisdom, balance, moderation, perspective, stability. Connects us to physical instincts and earth energies.
Greenstone is another name for nephrite, a semi-precious stone and a variety of jade. Nephrite is slightly softer that jadeite and is often veined; it is used in carvings, for making beautiful bowls and vases.
GRELOT ...
Jade is the term applied to forms of jadeite and nephrite. These minerals are similar in appearance and a distinction between the two often was not made.
There are actually two forms of jade: jadeite, which is the more precious form, and nephrite, which is more common (and more affordable).
Mongolian Spotted Jade, Mongolian White Jade, Phoenix Jade, South African Jade, Spotted Jade, White Jade - A microcrystalline gem variety of jadeite or nephrite (actinolite) with a toughness (resistance to breakage) exceeded only by that of ...
It is harder than nephrite, the other variety of jade, fractures more easily, and has a glossy appearance.
Green aventurine quartz is often dyed or sold as jade or nephrite jade. Selling it as any variety of jade is completely forbidden. Real jade is very rare in these colors.
Chanthaburi
Consult list of gems available on the Chanthaburi market...
Jadeite: A hard, translucent variety of jade which is rarer than the other varieties of nephrite and comes in a variety of colors such as orange, pink, yellow, brown, blue, violet, and black.
Jadeite
A variety of jade which is rarer than the other varieties of nephrite. Hard and translucent, it comes in many colors such as orange, pink, yellow, brown, blue, violet, and black.
Jade - the term jade can either refer to nephrite or jadeite, which is more expensive. Thought of as a green gemstone, but actually comes in many colors.
Jade: A name that was for many years applied to two distinct minerals, jadeite and nephrite, with different chemical compositions. Jadeite occurs in a wide range of opaque colours, transparent emerald-like greens being the most valuable.
Jade
A decorative stone used in jewelry and carvings. Is made up of one or two different minerals-Jadeite and Nephrite. Has a hardness of 6-7 on the Mohs Scale.
Karat
The standard measurement of gold. Pure gold is 24 Karats.
Deep green, translucent jadeite is revered, but apple green jades are also highly appreciated. Nephrite jades with strong natural colours as well as materials that are carved into symbols are meaningful to collectors.
 See also: Stone, Jade, Color, Jadeite, Gemstone
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