what is jasper?
Jasper, a form of chalcedony,[1] is an opaque,[2] impure variety of silica, usually red, yellow, brown or green in color; and rarely blue.
The specific gravity of jasper is typically 2.5 to 2.9.
Jasper often contains organic material and mineral oxides which give it interesting patterns, bands and colors. Its hardness ranges from 6.5-7 on the Moh's scale and was a favorite gem in ancient times.
Jasper is one of the many gemstone varieties of quartz.
Some Jasper bangle look alot like Nephrite (Biyu) bangle, but Japser is NOT nephrite Jade.
some FALSE NAMES
Many translucent to opaque greenish stones have been given a trade name of "Jade" with some sort of prefix. The list below describes some commonly seen names, though there are no doubt many more with some made up by individual dealers.
Amazon Jade - Green Amazonite.
Australian Jade - Green Quartz such as Aventurine.
Colorado Jade - Green Amazonite.
Indian Jade - Green Quartz such as Aventurine.
Jasper Jade - Jasper with a greenish color.
Korean Jade - Any Jade simulant, especially Green Quartz such as Aventurine.
Oregon Jade - Jasper with a greenish color that originates in Oregon.
African Jade, Garnet Jade, South African Jade, Transvaal Jade - Massive veins of opaque Hydrogrossular Garnet that resembles Jade. It is white to light green in color, and may be colored in a white, green, and pink combination. - See more at:
http://www.minerals.net/gemstone/jade_gemstone.aspx#sthash.DOjZUsQP.dpuf
few pics of Jasper
a lot seller does mention jasper jade, i think in china we translate jasper as (biyu> green color ) @@
so when i type Jasper in google translate >> bi yu (碧玉
please don't mistake Jasper as jade. because Jasper is one of the many gemstone varieties of quartz.