Green aventurine has a shimmering iridescence and a semitranslucent appearance. Aventurine is a metamorphic rock, meaning it is made up of more than one mineral. Green aventurine is mostly quartz with the glistening effect coming from tiny inclusions of shiny mica minerals. Colors may vary.
Cabochons>Grade B>AventurineCabochonsGrade BAventurineGreens40x30mmOval30mmhttp://www.firemountaingems.com/itemdetails/h201199cbH201199CBCabochon, green aventurine (natural), light to medium, 40x30mm calibrated oval, B grade, Mohs hardness 7. Sold individually.//image1.fmgstatic.com/images/p1199cbb.jpg6.596.59As Low As $2.76 per cabochon