Burmese jade can be the very rare black. This is of the jadeite variety and is extremely valuable.
Jade can come in a variety of colors including green, white, lavender, brown, red, orange and black. The amount of iron oxide and magnesium present in jade dictates its color. For example, jade with a high magnesium content will likely appear white. Conversely, black jade possesses significant iron oxide content (as much as 8 percent). Black jade is essentially a dark version of a multi-colored stone.
Black is not a color at all, but the absorption of all color, an aspect that perhaps lends to the sense of this rock as a symbol of power.
Nephrite and jadeite are the two forms of black jade found throughout the world. Black jade nephrite is the most common variety of black jade and can be found in the U.S. in California and Wyoming. Black jadeite is harder than nephrite and more rare, but can be found in Burma and Guatemala. As a result, black jadeite is more expensive than black jade nephrite.
People fail to realize that jade comes in more colors than green. In fact, the different colors of jade each have their own meaning or "properties." Black Jade is represents power, protection, wisdom and self-control. In a broader sense, the stone speaks to prudence (financial, social, for instance). Black Jade's power takes on the quality of purification and discharges negativity.
Black jade is also associated with the sign of Taurus, the planet Venus, the flow of water, holiness and base/root chakras. In pagan traditions, chakras refer to energy centers in your body and match powers of the mind, body and soul. The root chakra is the basis of all other chakras and refers to a grounding source that allows humans to connect with the earth's energies.
I just bought this Black Jade on the right. If anyone is interested give me a hollar.
Black Burmese Jade