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 BAventurineGreens7x5mmOval5mmhttp://www.firemountaingems.com/itemdetails/h201190cbH201190CBCabochon, green aventurine (natural), light to medium, 7x5mm calibrated oval, B grade, Mohs hardness 7. Sold per pkg of 16.//image1.fmgstatic.com/images/p1190cbb(3).jpg7.187.18As Low As $0.20 per cabochon