Jasper is an opaque impure variety of silica, usually red, yellow, brown or green in color. Blue is rare. This mineral breaks with a smooth surface.
Jasper is an ornamental rock composed mostly of chalcedony, microcrystalline quartz, in association with other minerals, which give it colorful bands and patterns.
Jasper was a favorite gem in the ancient world; its name can be traced back in Hebrew, Assyrian, Persian, Greek and Latin.
Jasper is often named according to its pattern: picture jasper, the most popular, offers a small panorama in stone. Ribbon jasper, picture jasper, and orbicular jasper are the names of other varieties.
Picture jaspers exhibit combinations of patterns (such as banding from flow or depositional patterns (from water or wind), dendritic or color variations) resulting in what appear to be scenes or images, on a cut section. Diffusion from a center produces a distinctive orbicular appearance, i.e., Leopard Skin Jasper, or linear banding from a fracture as seen in Leisegang Jasper. Healed, fragmented rock produces brecciated (broken) jasper. Examples of this can be seen at Llanddwyn Island in Wales
Jasper is found in many countries. It is sometimes used to create bowls and other objects and to adorn buildings, such as the Saint Wenceslas Chapel in Prague.
To gain more knowledge of jewelry and the trend of fashion jewelry,Please visit http://www.aypearl.com , wholesale jewelry online store.It offers a wide variety of handmade jewelry products –all sorts of pearl jewelry,crystal jewelry,gemstone jewelry,turquoise jewelry,coral jewelry,shell jewelry, Austrian crystal and other fashion jewelry .You can wholesale thousands of jewelry that in highest quality and lowest price conveniently. |
Latest News
