Chrysoprase Nuggets Gemstone loose beads stones 16-inch strand semi precious stone Buy wholesale Onl
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You are here home Gemstone Jewelry   Semi Precious Stones   Nuggets Chrysoprase
Nuggets  Email a Friend             Back 
Nuggets (31)
Plain beads (15)
Faceted Beads (54)
Peridot(1)
Garnet(3)
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Chrysoprase
Product Name : Chrysoprase
Product Code : GSB S 163
Price : $ 60.00
Quantity :
  
 
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Chrysoprase Nuggets Gemstones Features: 

Bead, chrysoprase(natural), hand-cut faceted teardrop. Sold per 16-inch strand.
An alluring green stone from the quartz family, chrysoprase ranges from bright apple green to pale sea green with white tones, interesting variations and an occasional black matrix. The faceted beads are hand-cut, sizes vary slightly.
ABOUT Chrysophase:
 
Size: 2mm
Shape: Bead (round in shape with a small hole in the center)
No of beads: 200 - 240 beads on a string
Type: Nuggets
Length: 16 inches long
Color: Green
 
What is Chrysoprase?
 
Chrysoprase or chrysophrase is a gemstone variety of chalcedony (a cryptocrystalline form of silica) that contains small quantities of nickel. Its color is normally apple-green, but varies to deep green. The darker varieties of chrysoprase are also referred to as prase. (However, the term prase is also used to describe green quartz, and to a certain extent is a color-descriptor, rather than a rigorously defined mineral variety.)
 
Chrysoprase is cryptocrystalline, which means that it is composed of crystals so fine that they cannot be seen as distinct particles under normal magnification. This sets it apart from rock crystal, amethyst, citrine, and the other varieties of crystalline quartz which are basically transparent and formed from easily recognized six-sided crystals. Other members of the cryptocrystalline silica family include agate, carnelian, and onyx. Unlike many non-transparent silica minerals, it is the color of chrysoprase, rather than any pattern of markings, that makes it desirable. The word chrysoprase comes from the Greek chrysos meaning 'gold' and prason, meaning 'leek'.
 
Unlike emerald which owes its green color to the presence of chromium, the color of chrysoprase is due to trace amounts of nickel compounds in form of very small inclusions. The nickel reportedly occurs as different silicates, like kerolite or pimelite (not NiO mineral, bunsenite, as was reported before). Chrysoprase results from the deep weathering or lateritization of nickeliferous serpentinites or other ultramafic ophiolite rocks. In the Australian deposits, chrysoprase occurs as veins and nodules with brown goethite and other iron oxides in the magnesite-rich saprolite below an iron and silica cap.
 
As with all forms of chalcedony, chrysoprase has a hardness of 6 - 7 on the Mohs hardness scale and a conchoidal fracture like flint. The best known sources of chrysoprase are Queensland, Western Australia, Germany, Poland, Russia, Arizona, California, and Brazil. The chrysoprase and Ni silicate ore deposit in Szklary, Lower Silesia, Poland, was probably the biggest European chrysoprase occurrence and possibly also the biggest in the world.
 
Nuggets beads are common in freakers and fashion lovers. Nuggets beads are weared very casually by girls.


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