12.10Ct AMAZING RARE!!! 100% NATURAL AUSTRALIAN GREEN CHRYSOPRASE (CENTRAL QUEENSLAND)

12.10Ct AMAZING RARE!!!

100% NATURAL AUSTRALIAN GREEN CHRYSOPRASE (CENTRAL QUEENSLAND)

MAKE AN AWESOME RING OR PENDANT

ROUGH QUEENSLAND CHRYSOPRASE

Chrysoprase is a distinct gemstone quality variety of chalcedony, a cryptocrystalline form of silicon dioxide. Chrysoprase is highly prized for its opalescent minty, apple-green color, which is especially unique and is owed to its distinctive coloring agent. Most green gemstones are colored by iron (tourmaline), chromium (emerald) or vanadium (tsavorite garnet), but chrysoprase derives its alluring color from nickel impurities, which form within otherwise colorless quartz crystal. Chrysoprase is considered to be one of the rarest and most valuable varieties of chalcedony. 

 Some of the most important sources include Australia, Brazil, Germany, Poland, Russia, South Africa, Tanzania, Zimbabwe, Madagascar, India, Kazakhstan and the United States (Arizona, Oregon and California). Previously, the mines of Frankenstein (Zabkowice) in Upper Silesia, Poland were the most abundant sources for gem quality chrysoprase, but today, Australia produces nearly 85% of the world's supply. Chrysoprase mined from Central Queensland (Australia) is considered to be some of the world's highest quality, with many specimens displaying translucency and color similar to that of fine quality jade. 

  PICTURE IS ENLARGED 

 Gem Type:  AMAZING RARE!!! 100% Natural CHRYSOPRASE  

        Shape:  OVAL       

Quantity:  1

Total Weight:  12.10ct

Colour:  GREEN  

Size:  15.45x12.06x9.22mm

Treatment:  UNHEATED

Origin:   AUSTRALIA - QUEENSLAND 

Hardness:  6.0 - 7.0 MOH'S SCALE