Jade or "yu" as it is called in China, truly is one name for two separate gems with similar characteristics. The first being Jadeite, the second Nephrite, both are indeed "Jade".
It was in 1863 when the two stones were recognized separately. Nephrite is more common, but both are tough, fine-grained rocks, suitable for carving.
Jadeite, though, made up of interlocking ,granular pyroxene crystals, occurs in a wide range of colors, such as green, lilac, white, pink, brown, red, blue, black, orange and yellow. The most prized variety, imperial jade, is a deep rich emerald green due to chromium content. Jadeite commonly has a dimpled surface when polished.
Nephrite is found as aggregates of fibrous amphibole crystals. This composite forms an interlocking structure that is tougher than steel. Colors may vary from a dark green (which is rich in iron) to a cream color (which is high in magnesium). Nephrite jade may be homogeneous in color, banded or blotchy.
In Chinese tradition, Jade symbolized the five virtues of humanity: wisdom, compassion, justice, modesty and courage. Symbols of these virtues were often carved into Jade.
Astrological : Aries, Gemini, Taurus and Libra
Jade is a gemstone of much history, it has been part of Asian philosophy for centuries. It is often called the "dream stone" and a “stone of fidelity” for its ability to help one access the non-physical spirit realms. It is a protective stone, and acts as a ward against negative energies.
Jade is a symbol of serenity and purity. It signifies wisdom gathered in tranquility.
This is a stone that can help you to attain your goals and dreams, instilling resourcefulness, and allowing you to see past your self imposed limitations and manifest your ideas into the physical world.
Jade, considered a very lucky stone, facilitates peace and harmony between the mental, physical, emotional and spiritual aspects of ones life. When all of these aspects operate in harmony and balance, goals become easier to reach.
Jade is also a "stone of the heart". As such it is related to the heart chakra and has a beneficial effect on all heart related issues, both physically and for emotional balance and stability. So, it is known to attract and enhance love of all kinds.
Jade is also very helpful as a stone of abundance. It facilitates peace within the physical, emotional and intellectual structures, as well as within the materialistic world. It brings accord to the environment, transmuting negativity and instills resourcefulness.
Jade has been referred to as a “sacred stone”, assisting one in access to the spiritual worlds. It is said to bring the user a long and fruitful life with a gentle transition from this body to the spiritual world. It also provides confidence, assisting one in the attainment of self-assuredness and self-reliance.
Jade is said to promote courage, compassion, justice, generosity, humility, wealth and longevity, to lead a richer more fulfilling life.
Jade encourages you to become who you really are.
Jade of all types and colors are very protective and particularly strong for children against illness.
Jade also has very powerful calming vibrations that are beneficial in a great many ways.
Green jade creates calm, harmony and peace, it will counteract depression, banish evil spirits, and may produce dreams that are vivid and accurate.
Black Jade is helpful when one is feeling under attack and survival is even in question, this stone will give one strength to fight.
Blue Jade helps to neutralize karmic influences and the emotional issues that are tied to them, as well it will assist in relaxation and meditation.
Brown or Gray Jade calms and drains off excessive energy; temporarily less the impact of many karmic events. These colors will also help with adjusting to new surroundings, and settling negative events in the home.
Lavender Jade is known to assist with fresh ideas and creativity. It is said to bring psychic understanding of ones dreams, and to aid in recovering form any negative love situation.
Orange or Pink Jade are both said to be beneficial in creating healthy skepticism.
Red Jade is known to aid in dealing with feelings of anger and releasing tension.
White Jade is extremely calming and can be used for grounding as well as assist in making decisions.
Yellow Jade is told to help one gain a better understanding of the opposite sex.
Jade is said to be a stone of the heart, strengthening it as well as the nervous system and immune system and to promote health in the organs that purify the blood.
Jade is used to heal disorders of the heart, lungs, hips, kidneys, and spleen, while aiding immune system weakness, PTSD, and nervous system overwork. It is excellent as an elixir to soothe and smooth the skin and stimulate healthy hair.
Jade aids the body’s filtration and elimination organs. Strengthens the body's filtration and cleansing systems and assists in the removal of toxins, rebinds skeletal and cellular systems, and heals stitches. It assists fertility and childbirth. Jade balances body fluids.