Jadeite

General Electric produced synthetic jadeite in a variety of green colours and lavender colour, but synthetic jadeite is not yet commercially available. - GIA 2018 6.5 to 7Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references 3.28 to 3.38Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references BrittleWalter Schumann, Gemstones of the world (2001) NoneArthur Thomas, Gemstones (2009) More from other references UnevenArthur Thomas, Gemstones (2009) More from other references 1.652 to 1.688Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references Biaxial/+Ulrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references 0.012 to 0.020Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references NilArthur Thomas, Gemstones (2009) NilArthur Thomas, Gemstones (2009) Green, white, pink, red, orange, yellowish, brown, red-violetUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references No reaction. Dyed green: if present, a red reaction is diagnostic (chromium)Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) "Emerald" green (chrome jadeite), Cr3+ in octahedral coordination. Yellowish green, Fe3+ in octahedral coordination. Violet ("lavender jadeite"), Fe2+-O-Fe3+ charge transfer, synthetic is colored by Mn3+W. William Hanneman, Pragmatic Spectroscopy For Gemologists (2011) Translucent,OpaqueUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references Greasy,DullWalter Schumann, Gemstones of the world (2001) More from other references Greenish jadeite: very weak - whitish glimmerWalter Schumann, Gemstones of the world (2001) Inert to whitish-greenish; bleached stones: possible bluish-white or yellow-green reactionHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) MonoclinicHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references Intergrown, grainy aggregateWalter Schumann, Gemstones of the world (2001) More from other references In high-pressure metamorphic rocks of the glaucophane facies; a component of eclogite.Anthony et al, Handbook of mineralogy (2001) More from other references Jadeite information at mindat.org Cuba  Garcia-Casco et al. (2009) Guatemala  Japan  Chihara (1999) Chihara (1999) Kazakhstan  Spiridonov (1998) Myanmar  Ou Yang (1999) Ou Yang (1999) Ou Yang (1999) Ou Yang (1999) Ou Yang (1999) Ou Yang (1999) Ou Yang (1999) Ou Yang (1999) Ou Yang (1999) Russia  Spiridonov (1998) Yushkin (1996) Turkey  Okay (2002)