1. Nanyang jade
The diggings of the Nanyang jade locate in kopje, so also
named “kopje jade”, “single jade”. The Nanyang jade is the bowlder of the
plagioclase sorts, exquisite and pure texture, with the luster of fat and oil
or glass, good polishing capability, clarity or light clarity. Degree of
hardness is for 5.5 to 6.5 degrees. Nanyang jade is the multicolor jade.
Commonly the multicolor jade is composed of more than two or three kinds of
hugs, the color is bright, called respectively: White jade, white jade, black
and white jade, green jade, green and white jade, shamrock jade, jade green
jade, blue jade, purple jade, lustrous brown jade, yellow jade, ink jade, and
mottle jade etc. The exploring history of Nanyang jade is long. According to
the literature records, the exploration of Nanyang jade had already been of
great scale in Han Dynasty. So far, there have thousands of ancient mineral
pits left, and it is so clear that how long the exploring history of the Nanyang
jade, and so large the scale. The reserves of the Nanyang jade are very
abundant, and can be scaled production till today.
2. Uranium rock jade
It gets the name because the main origin place is in the
Youyan of Liaoning, also named uranium jade. It belongs to serpentine group,
formed from metamorphosing marbles of magnesium carbonatite. There are many
mineral deposits of this kind geological environment, so the origin place of
the uranium jade is wide. The outlook of the uranium presents blue green and
yellow green. It is transparent, and presents waxlike luster after polishing,
the hardness is for 3.5 to 5 degree. The jade materials used in Neolithic Age
of Hongshan culture, which produced from Xiyu GAP in the Youyan, commonly named
old jade, is the nephrite of tremolite. Most jade implements unearthed from
Fuhao grave of Shang Dynasty, are similar to the uranium jades produced from
Youyan Vanuatu Gap. The exploring history of the uranium jade in Vanuatu Gap is
long, also with the abundant reserves. So far, it has been the main jade
mineral area in
3. Hetian jade
It locates in Xinjiang Shache---Tashaku’ergan,
Hetian---Yuzhen, and north of the Kunlun
mountains consecutive about 1500 kilometers in Mo country, totally 9 origins.
The main mineral composition of the Hetian jade is tremolite---actinolite, with
little mineral substance of diopside,
serpentine, graphite, magnet, etc. and with the different
of shine ,such as white, blue green, black, yellow, etc. Most is the single
color jade, and little is the multicolor jade. It is transparent, and presents
camphor luster after polishing, the hardness is 5.5 to 5.6 degree. Hetian jade
nips between the mountain rocks of elevation at 3500 to 5000 meters. The rock
was divided into many chips of different size for long weathering, avalanching
to the hillside, and then flowed into the river scoured by the rains. When the
river is dry in autumn, the jade collected in the riverbed is called seed jade,
and the jade explored in the rock is called mountain anticipate. Now the
earliest discovered jade made of Hetian jade comes from the Xufuhao grave in
Yinxu. After the Spring and Autumn Period and Warring States Period, Hetian
jade gradually became the main materials of jade, most explored were seed jade,
and it was started exploring mountain anticipate till Qing Dynasty.
The test of the economic value of
the Hetian jade is cleanliness of the color and texture. The main types of the
jade include white jade, suet white jade, green white jade, green jade, yellow
jade, sugar jade, ink jade, jasper.
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