Nephrite is a variety of jade available in green shades ranging from medium to dark and may display black inclusions. Used for centuries for its true-grit hardness and classic beauty. Major deposits are found in British Columbia, Canada. Grades vary dependent on availability of rough material.
Beads>Grade B>Nephrite JadeBeadsGrade BNephrite JadeGreensBall6mmNaturalhttp://www.firemountaingems.com/itemdetails/h203733gsH203733GSBead, nephrite jade (natural), medium to dark, 6mm round, B grade, Mohs hardness 6 to 6-1/2. Sold per 16-inch strand.//image1.fmgstatic.com/images/p3733gsb.jpg40.3140.31As Low As $21.49 per strand