Man made.
Man made
Jade, jadeite, nephrite and so on are complex silicates. The toughness of these minerals is due to the interlocking nature of the crystals. Time is not the determinant, but the degree of metamorphism is. That refers to temperature and rate of cooling to which the mineral has been subjected.
Californium is a man made chemical element.
lead is not a man made substance. Infact lead is a poisonous element
The jadeite cabbage in the National Museum of Tai-Peh is anonymous.
The scientific name for Jadeite is Jadeiteatelia. Thank you for using answer.com
There are many countries that produce a form of Jadeite. Countries that one might readily find the Jadeite stone is China, New Zealand, Japan, and Burma.
Jadeite can be used for jewelry and sculptures. It can also be used for making dishes and other useful items.
The characteristic of jadeite it is the same of quartz green Aventurine with the only different the grade quartz is 7 more strong than jadeite grade 6.5 the Olmec quartz green Aventurine the value is more that jadeite... Because it's very rare in the world Olmec mask quartz 1 carat can cost over one milliom Dollars $1,000000 dollars ... In today market because it's rare.
6.5 - 7.0
Jade is made up of two different silicate minerals whose names are Nephrite and Jadeite, according to the Wikipedia article about Jade.
Jadeite
Until recent years jadeite has been something of a mystery mineral, but we now know of primary sources in Guatemala as well as several California occurrences of white or grayish jadeite. Boulders in which a few small freestanding crystals have been seen occur in San Benito Co., California, with additional finds in Clear Creek, between New Idria and Hernandez. All Mexican jadeite is in artifacts, from unknown sources. The record price for a single piece of jadeite jewelry was set at the November 1997 Christie's Hong Kong sale: Lot 1843, the "Doubly Fortunate" necklace of 27 approximately .5 mm jadeite beads sold for US$9.3 million The worlds most rare mineral is jadeite.
Jadeite USD $3 + Million/Carat Until recent years jadeite has been something of a mystery mineral, but we now know of primary sources in Guatemala as well as several California occurrences of white or grayish jadeite. Boulders in which a few small freestanding crystals have been seen occur in San Benito Co., California, with additional finds in Clear Creek, between New Idria and Hernandez. All Mexican jadeite is in artifacts, from unknown sources. The record price for a single piece of jadeite jewelry was set at the November 1997 Christie's Hong Kong sale: Lot 1843, the "Doubly Fortunate" necklace of 27 approximately .5 mm jadeite beads sold for US$9.3 million
Jade is a name given to two metamorphic ornamental gem stones; nephrite and jadeite. Nephrite is softer than jadite and has less varity of colour. Nephrite varies from white to green, jadeite varies from blue through lavender to an emerald green. Nephrite is more abundant than jadeite which is only found in 11 places in the world. The rarest and historically most sought after jade is a jadeite of translucent emerald green.
jade can be found at the very north of mongolia, or the hole east coast