Nephrite

Less commonly dyed than jadeite-jade because of its more compact structure, may be impregnated - Blue Chart Gem Identification, Herve Nicolas Lazzarelli, 2010, p 5 6 to 6.5Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references 2.90 to 3.10Herve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references BrittleWalter Schumann, Gemstones of the world (2001) NoneArthur Thomas, Gemstones (2009) SplinteryArthur Thomas, Gemstones (2009) 1.600 to 1.627Walter Schumann, Gemstones of the world (2001) More from other references Biaxial/-Arthur Thomas, Gemstones (2009) 0.027 to often moreWalter Schumann, Gemstones of the world (2001) More from other references NilArthur Thomas, Gemstones (2009) NilArthur Thomas, Gemstones (2009) YesUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) Green, gray-green, reddish-brown, blackUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references Translucent,OpaqueUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references NoneWalter Schumann, Gemstones of the world (2001) MonoclinicHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references FibrousHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references Occurs in serpentine rocks, and as river or beach pebbles.Walter Schumann, Gemstones of the world (2001) More from other references Nephrite information at mindat.org Australia  Nichol (2000) Canada  Nichol (2000) Nichol (2000) China  Italy  Nichol (2000) New Zealand  Switzerland  Nichol and Giess (2005) Taiwan  Adams and Beck (2009) USA  Paradise (1985) Ward (1999)